CN103814675B - A kind of without Scroll hay mover head - Google Patents
A kind of without Scroll hay mover head Download PDFInfo
- Publication number
- CN103814675B CN103814675B CN201410088548.6A CN201410088548A CN103814675B CN 103814675 B CN103814675 B CN 103814675B CN 201410088548 A CN201410088548 A CN 201410088548A CN 103814675 B CN103814675 B CN 103814675B
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- Prior art keywords
- line
- hollow round
- round table
- ball cover
- shaft
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Abstract
The invention discloses one without Scroll hay mover head, comprise line shaft, bobbin cylinder, fixing swivel nut, line ball cover and line of cut, line shaft is fixedly mounted in hay mover frame; Bobbin cylinder is that cross section is trapezoidal hollow round table, the center of hollow round table upper flat plate has centre bore, centre bore coordinates with line shaft, is fixedly mounted on line shaft, and the step of evagination is arranged at hollow round table bottom, the outer rim place of step is provided with boss, line ball cover is circle cover, and line ball cover is sleeved on outside the sidewall of bobbin cylinder middle and lower part, and fixing swivel nut is inner screw sheath, be arranged on bobbin cylinder hollow round table top by screw thread, lower edge and line ball cover upper limb connect; Line of cut one end is placed in bobbin cylinder hollow round table lower step, and the other end is free end, and line ball cover is pressed on line of cut in bobbin cylinder hollow round table lower step. The present invention is simple in structure, parts are few, and mounting or dismounting are convenient, low cost of manufacture, and cutting efficiency is high, and operation and maintenance is simple to operate, failure rate is low.
Description
Technical field
The invention belongs to mowing mechanical equipment technical field, relate in particular to lawn-care pruning mowing machinery and establishStandby, particularly hay mover head.
Background technology
State Intellectual Property Office of the People's Republic of China announce patent of invention " a kind of hay mover " (patent No.:200980103570.0), " cut 200910180677.7), " rotary cutter for mower " (patent No.:Grass machine rotary cutter " 201080058938.9), " for the end of a thread of hay mover " (special (patent No.:Profit number: 201080001286.5) and " string trimmer " (patent No.: 201310086285.0) discloseSeveral hay movers and hay mover head, the common feature of these hay mover heads is to have winding line of cutSpool. Its deficiency is: owing to having the spool that is wound around line of cut, make its complex structure, partQuantity is various, and manufacturing cost is high.
Summary of the invention
The object of this invention is to provide one without Scroll hay mover head, overcome the deficiencies in the prior art.
Technical scheme of the present invention is as follows: a kind of without Scroll hay mover head, comprise line shaft, bobbinCylinder, fixing swivel nut, line ball cover and line of cut, is characterized in that; Described line shaft is fixedly mounted on and cutsIn grass machine frame; Described bobbin cylinder is that cross section is trapezoidal hollow round table, hollow round table closed upper part,Lower openings, the center of hollow round table upper flat plate has centre bore, and centre bore coordinates with line shaft,Be fixedly mounted on line shaft, hollow round table bottom has along the step of hollow round table sidewall evagination, stepOuter rim place is provided with boss, and described line ball cover is circle cover, under line ball cover is sleeved in bobbin cylinder hollow round tableOutside portion's sidewall, line ball cover bottom is placed in bobbin cylinder hollow round table lower step, is positioned at the outer rim of stepIn boss; Described fixing swivel nut is inner screw sheath, is arranged on bobbin cylinder hollow round table top by screw thread,The lower edge of fixing swivel nut and line ball cover upper limb connect; Described line of cut one end is placed in bobbin cylinder hollow round tableIn lower step, the other end is free end, and line ball cover is pressed on line of cut under bobbin cylinder hollow round tableOn portion's step.
One of the present invention, without Scroll hay mover head, is characterized in that: the sky of described bobbin cylinderOn heart round platform sidewall outer surface, be evenly distributed with n axial notch, n=1,2,3 ... 12; Described in n root, cutLine is placed in respectively in n axial notch, and every undercut secant one end is extremely hollow from bottom to top in axial notchRound platform top, the line of cut other end stretches out hollow round table lower step, is free end.
One of the present invention, without Scroll hay mover head, is characterized in that: the sky of described bobbin cylinderOn heart round platform sidewall outer surface, be evenly distributed with 2n axial notch, n=1,2,3 ... 12; Under hollow round tablePortion and 2n axial notch correspondence position has 2n hole, described in n root between line of cut across being placed in respectively nIn individual axial notch, every undercut secant arranges from the top down in axial notch, by axial notch bottomHole is passed after hollow round table, more radially penetrates behind another hole relative with this axial notch, stretches out hollowRound platform lower step, becomes free end,
One of the present invention, without Scroll hay mover head, is characterized in that: the sky of described bobbin cylinderHeart round platform sidewall outer surface top is provided with and the external screw thread of fixing swivel nut internal thread and matching, in fixing swivel nutScrew thread is connected with bobbin cylinder by the external screw thread on hollow round table sidewall outer surface top, spiral shell in fixing swivel nutThe external screw thread on line and hollow round table sidewall outer surface top screws direction and line shaft direction of rotation.
One of the present invention, without Scroll hay mover head, is characterized in that: described hollow round table topThe mode that dull and stereotyped centre bore is fixedly mounted on line shaft comprises circumferentially connecting and axial restraint, described circumferentialConnection is that line shaft passes bobbin cylinder central upper portion hole and makes line shaft and bobbin cylinder by flat key or splineCircumferentially connecting, described axial restraint is on line shaft, to be with the shaft shoulder, line shaft end face has screw, connects spiral shellNail is tightened in the screw that line shaft end face opens, and the shaft shoulder is resisted against in hollow round table upper flat plate, is connectingBetween screw and hollow round table upper flat plate, be provided with baffle plate, realize axle by the shaft shoulder, baffle plate and joint boltTo fixing; Joint bolt screw thread and line shaft screw screw thread screw direction and line shaft direction of rotation.
One of the present invention, without Scroll hay mover head, is characterized in that: described line ball put withCutting irdome, described cutting irdome is a disk, disc centre has the circle matching with line ball cover external diameterHole, disc centre circular hole is fixed on line ball cover lower end.
One of the present invention, without Scroll hay mover head, is characterized in that: described line ball cover is for transparentThe transparent line ball cover that material is made.
One of the present invention, without Scroll hay mover head, is characterized in that: described line shaft is electronicMachine output shaft or internal combustion engine output shaft.
One of the present invention, without Scroll hay mover head, is characterized in that: described line shaft is electronicWhen machine output shaft, described motor is adjustable speed dc motor, and dc motor is changed with rotatingSwitch, dc motor is just transferring mowing state to, and dc motor is reversed to slow rotation, for unclampingFixing swivel nut, unclamping fixing swivel nut concrete operation method is to pin fixing swivel nut, by dc motor justReversion change-over switch forwards backward position to, starts direct current generator, and fixing swivel nut is released, fixing swivel nutAfter unclamping, dc motor cuts out, can pull out line of cut.
The invention has the beneficial effects as follows:
1, line ball cover is from radially line of cut being limited in the axial notch of line ball cover and bobbin cylinder, fixingSwivel nut and line ball are enclosed within the bottom stage that axially line of cut is limited in to line ball cover and bobbin cylinder, cuttingLine is fixed;
2, line of cut can be arranged as required, and cutting efficiency is high;
3, the line ball cover of band cutting irdome can prevent that cut blade of grass from upwards splashing;
4, line ball cover is transparent, and the surplus that can conveniently observe line of cut, is beneficial to the adjustment of overhanging line of cut;
5, fixing swivel nut internal thread and the external screw thread screw thread on hollow round table sidewall outer surface top screw direction andLine shaft direction of rotation, the rotation while making motor work impels internal thread and the bobbin of fixing swivel nutThe external screw thread of cylinder screws, and can not loosen;
6, joint bolt screw thread and line shaft screw screw thread screw direction and line shaft direction of rotation, makeRotation when motor work impels joint bolt screw thread and line shaft screw screw thread to screw, and can not loosen;
7, simple in structure, number of parts is few, low cost of manufacture, and operation and maintenance is simple to operate.
Brief description of the drawings
Fig. 1 is without Scroll hay mover head assembly relation schematic diagram
Fig. 2 A is bobbin column structure side schematic view
Fig. 2 B is bobbin column structure forward schematic diagram
Fig. 3 A is the pressure knot nested structure schematic diagram of not being with secant cover
Fig. 3 B is the pressure knot nested structure schematic diagram with secant cover
Fig. 4 be have secant cover without Scroll hay mover head assembly relation schematic diagram
Fig. 5 is n=6, embodiment schematic diagram when line of cut is n/2=3 bar
Fig. 6 is n=12, embodiment schematic diagram when line of cut is n/2=6 bar
In figure, 1, line shaft, 2, baffle plate, 3, joint bolt, 4, bobbin cylinder, 5, fixing swivel nut,6, line ball cover, 7, line of cut, 8, hole, 9, axial notch, 10, centre bore, 11, boss.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Comprise line shaft 1, bobbin cylinder 4, fixing swivel nut 5, line ball cover 6 without Scroll hay mover headWith line of cut 7, line shaft 1 is fixedly mounted in hay mover frame, and line shaft 1 is motor output shaftOr internal combustion engine output shaft, when line shaft is motor output shaft, motor is adjustable speed dc motor,Dc motor is with rotating change-over switch, and dc motor is just transferring mowing state, dc motor toBe reversed to slow rotation, for unclamping fixing swivel nut, unclamping fixing swivel nut concrete operation method is to pinFixing swivel nut, forwards dc motor rotating change-over switch to backward position, starts direct current generator, GuDetermine swivel nut released, after fixing swivel nut unclamps, dc motor cuts out, can pull out line of cut;Bobbin cylinder 4 for cross section be trapezoidal hollow round table, hollow round table closed upper part, lower openings, hollowThe center of round platform upper flat plate has centre bore 10, and centre bore 10 coordinates with line shaft, fixing peaceBe contained on line shaft, line shaft 1 makes by flat key or spline through bobbin cylinder 4 central upper portion holes 10Mechanical axis 1 and bobbin cylinder 4 circumferentially connectings, the hollow round table sidewall outer surface top of bobbin cylinder 4 is provided withWith the external screw thread screw thread that fixing swivel nut 5 internal threads match, on line shaft 1, be with the shaft shoulder, line shaft end faceHave screw, joint bolt 3 is tightened in the screw that line shaft end face opens, and the shaft shoulder is resisted against hollow round tableIn upper flat plate, between joint bolt 3 and hollow round table upper flat plate, be provided with baffle plate 2, by the shaft shoulder,Baffle plate 2 and joint bolt 3 are realized axial restraint, and joint bolt 3 screw threads and line shaft screw screw thread screwDirection and line shaft direction of rotation. Hollow round table bottom has along the step of hollow round table sidewall evagination,The outer rim place of step is provided with boss 11, and line ball cover 6 is circle covers, and line ball cover 6 is sleeved on bobbin cylinder 4 skiesOutside the sidewall of heart round platform middle and lower part, line ball overlaps 6 bottoms and is placed in bobbin cylinder 4 hollow round table lower step,Be positioned at the outer rim boss 11 of step, line ball cover 6 is made for transparent material, and line ball cover 6 has two kinds, oneKind be simple circle cover, another kind be on line ball cover 6 with cutting irdome, cutting irdome is a disk,Disc centre has with line ball overlaps the circular hole that 6 external diameters match, and disc centre circular hole is fixed on line ball cover 6Lower end. Fixing swivel nut 5 is inner screw sheaths, by the external screw thread screw thread on hollow round table sidewall outer surface topBe connected the external screw thread on fixing swivel nut 5 internal threads and hollow round table sidewall outer surface top with bobbin cylinder 4Screw thread screws direction and line shaft direction of rotation. The lower edge of fixing swivel nut 5 and line ball overlap 6 upper limbs and connectLean on.
The mounting means of line of cut 7 has following several:
1, reality is used one end direct pressing of line of cut 7 of length at line ball cover 6 and bobbin cylinder 4In hollow round table lower step;
2, on the hollow round table sidewall outer surface of online jack-post body 4, evenly have n axial notch 9,N=1,2,3 ... 12; The line of cut of being longer than actual use length is placed in respectively in n axial notch 9, everyUndercut secant one end is from bottom to top to hollow round table top in axial notch 9, and the line of cut other end stretches outHollow round table lower step is free end. Line of cut 7 is compressed on line ball cover 6 and bobbin by line ball cover 6In cylinder 4 hollow round table lower step;
3, on the hollow round table sidewall outer surface of online jack-post body, evenly have 2n axial notch,N=1,2,3 ... 12; Hollow round table bottom and 2n axial notch correspondence position has 2n hole, and n root is longUse the line of cut of length to be placed in respectively in n axial notch in reality, every undercut secant is at axial notchInside arrange from the top down, passed after hollow round table by the hole of axial notch bottom, more radially penetrate and this axleBehind another hole of groove opposite side, stretch out hollow round table lower step, become free end, line ball cover6 are compressed on line of cut 7 in line ball cover 6 and bobbin cylinder 4 hollow round table lower step.
Embodiment 1
Line shaft 1 is motor output shaft, and line ball overlaps on 6 with cutting irdome, as shown in Figure 4.
Embodiment 2
Line shaft 1 is motor output shaft, and line ball cover 6 is not with cutting irdome, the axle on bobbin cylinder 4Be 6 to groove 9, line of cut 7 is 3, as shown in Figure 5.
Embodiment 3
Line shaft 1 is motor output shaft, and line ball cover 6 is not with cutting irdome, the axle on bobbin cylinder 4Be 12 to groove 9, line of cut 7 is 6, as shown in Figure 6.
When assembling, first, the endoporus of fixing swivel nut 5 and line ball cover 6 is passed to electric machine main shaft, then,Bobbin cylinder 4 is connected by flat key or spline and motor main shaft, then the shaft shoulder by electric machine main shaft andBaffle plate 2, joint bolt 3 are realized the axial location of electric machine main shaft and bobbin cylinder 4 and are fixed; To cut againSecant 7 is respectively through the hole of bobbin cylinder 4 bottoms and the hole 8 on opposite radially, afterwards by 7 of lines of cutAcross the axial notch 9 that is placed in bobbin cylinder 4, and make the height of its axial height and bobbin cylinder 4Identical; Then with line ball cover 6, all lines of cut 7 are entangled, line of cut 7 is limited in to line ball cover 6 HesIn the axial notch 9 of bobbin cylinder 4, promote vertically line ball cover 6 downwards and make its bottom and bobbin postLine of cut 7 in body 4 bottom stage contacts; Then, rotary fixing screw cover 5, makes fixing swivel nut 5 edgesAxially promote line ball cover 6, make line of cut 7 quilt between line ball cover 6 and the bottom stage of bobbin cylinder 4Be fixed. In the time that motor rotates, drive bobbin cylinder 4 to rotate by flat strong or spline, make to fixSwivel nut 5, line ball cover 6 and line of cut 7 are along with bobbin cylinder 4 rotates; Line of cut 7 is at the work of centrifugal forceUse lower circumferentially extending, and careless action is cut in rotation simultaneously.
In the time that line of cut 7 shortens, the fixing swivel nut 5 of reverse rotation, unclamps line ball cover 6, change or toOuter extraction line of cut 7, makes line of cut 7 reach desired extension, then, then will fix swivel nut 5Screw, make line ball cover 6 again compress line of cut 7.
Claims (10)
1. without a Scroll hay mover head, comprise line shaft (1), bobbin cylinder (4), fixing spiral shellCover (5), line ball cover (6) and line of cut (7), is characterized in that; Described line shaft (1) fixed installationIn hay mover frame; Described bobbin cylinder (4) for longitudinal section be trapezoidal hollow round table, on hollow round tablePortion's sealing, lower openings, the center of hollow round table upper flat plate has centre bore (10), centre bore (10)Coordinate with line shaft, be fixedly mounted on line shaft, hollow round table bottom has along hollow round table sidewall evaginationStep, the outer rim place of step is provided with boss (11), and described line ball cover (6) is circle cover, line ball cover (6) coverBe contained in outside the sidewall of bobbin cylinder (4) hollow round table middle and lower part, line ball cover (6) bottom is placed in bobbin cylinder (4)In hollow round table lower step, be positioned at the outer rim place boss (11) of step; Described fixing swivel nut (5) isInner screw sheath, is arranged on bobbin cylinder (4) hollow round table top by screw thread, under fixing swivel nut (5)Edge and line ball cover (6) upper limb connect; Described line of cut (7) one end is placed in bobbin cylinder (4) hollow round tableIn lower step, the other end is free end, and line of cut (7) is pressed on bobbin cylinder (4) by line ball cover (6)In hollow round table lower step.
2. one according to claim 1, without Scroll hay mover head, is characterized in that: described inOn the hollow round table sidewall outer surface of bobbin cylinder (4), be evenly distributed with n axial notch (9),N=1,2,3 ... 12; Line of cut described in n root (7) is placed in respectively in n axial notch (9), every cuttingLine (7) one end in axial notch (9) from bottom to top to hollow round table top, line of cut (7) other endStretching out hollow round table lower step, is free end.
3. one according to claim 1, without Scroll hay mover head, is characterized in that: described inOn the hollow round table sidewall outer surface of bobbin cylinder (4), be evenly distributed with 2n axial notch (9),N=1,2,3 ... 12; A hollow round table bottom and 2n axial notch (9) correspondence position has 2n hole (8),Between line of cut described in n root (7) in being placed in respectively n axial notch (9), every undercut secant (7)In axial notch (9), arrange from the top down, pass open circles by the hole (8) of axial notch (9) bottomAfter platform, more radially penetrate behind another hole (8) relative with this axial notch, stretch out hollow round table lower stageRank, become free end.
4. one according to claim 1, without Scroll hay mover head, is characterized in that: described inThe hollow round table sidewall outer surface top of bobbin cylinder (4) is provided with and fixes swivel nut (5) internal thread and matchExternal screw thread, fixing swivel nut (5) internal thread is by external screw thread and the bobbin on hollow round table sidewall outer surface topCylinder (4) connects, the external thread rotary on fixing swivel nut (5) internal thread and hollow round table sidewall outer surface topTight direction and line shaft direction of rotation.
5. one according to claim 1, without Scroll hay mover head, is characterized in that: described inThe mode that hollow round table upper flat plate centre bore (10) is fixedly mounted on line shaft comprises circumferentially connecting and axleTo fixing, described circumferentially connecting is that line shaft (1) is logical through bobbin cylinder (4) central upper portion hole (10)Cross flat key or spline and make line shaft (1) and bobbin cylinder (4) circumferentially connecting, described axial restraint is powerOn axle, be with the shaft shoulder, line shaft end face has screw, and joint bolt (3) is tightened on the screw that line shaft end face is openedIn, the shaft shoulder is resisted against in hollow round table upper flat plate, joint bolt (3) and hollow round table upper flat plate itBetween be provided with baffle plate (2), realize axial restraint by the shaft shoulder, baffle plate (2) and joint bolt (3); ConnectScrew (3) screw thread and line shaft screw screw thread screw direction and line shaft direction of rotation.
6. one according to claim 1, without Scroll hay mover head, is characterized in that: described inLine ball cover (6) is upper, and with cutting irdome, described cutting irdome is a disk, and disc centre has and line ball cover(6) circular hole that external diameter matches, disc centre circular hole is fixed on line ball cover (6) lower end.
7. one according to claim 1, without Scroll hay mover head, is characterized in that: described inThe transparent line ball cover that line ball cover (6) is made for transparent material.
8. one according to claim 1, without Scroll hay mover head, is characterized in that: described inLine shaft (1) is motor output shaft or internal combustion engine output shaft.
9. one according to claim 8, without Scroll hay mover head, is characterized in that: described inWhen line shaft (1) is motor output shaft, described motor is adjustable speed dc motor, dc motorWith rotating change-over switch, dc motor is just transferring mowing state to, and dc motor is reversed at a slow speed and turnsMoving, for unclamping fixing swivel nut.
10. a kind of method of unclamping fixing swivel nut without Scroll hay mover head as claimed in claim 9, its spyLevy and be: described in unclamp fixing swivel nut method be: pin fixing swivel nut, walk around positive and negative dc motorChange switch and forward backward position to, start direct current generator, fixing swivel nut is released, will after fixing swivel nut unclampsDc motor cuts out, and can pull out line of cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088548.6A CN103814675B (en) | 2014-03-11 | 2014-03-11 | A kind of without Scroll hay mover head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088548.6A CN103814675B (en) | 2014-03-11 | 2014-03-11 | A kind of without Scroll hay mover head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103814675A CN103814675A (en) | 2014-05-28 |
| CN103814675B true CN103814675B (en) | 2016-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410088548.6A Expired - Fee Related CN103814675B (en) | 2014-03-11 | 2014-03-11 | A kind of without Scroll hay mover head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103814675B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557052A (en) * | 1983-02-08 | 1985-12-10 | Kioritz Corporation | Mowing machine with annular inertia shifter |
| US5433006A (en) * | 1994-01-28 | 1995-07-18 | Komatsu Zenoah Company | Mowing apparatus |
| EP1651026B1 (en) * | 2003-07-19 | 2010-03-24 | Wolf-Garten GmbH & Co. KG | Line trimmer |
| CN203226032U (en) * | 2013-05-21 | 2013-10-09 | 正阳实业投资有限公司 | Knocking type pay-off grass trimming head |
| DE102012016026A1 (en) * | 2012-08-13 | 2014-02-13 | Auerswald-Wolff S.A.R.L. | Cutting head for trimmer used for removing floor plant e.g. grass, has cutting thread which is clamped between through concave ring and intermediate ring, so that output direction is determined by shape of inner contour of ring |
-
2014
- 2014-03-11 CN CN201410088548.6A patent/CN103814675B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557052A (en) * | 1983-02-08 | 1985-12-10 | Kioritz Corporation | Mowing machine with annular inertia shifter |
| US5433006A (en) * | 1994-01-28 | 1995-07-18 | Komatsu Zenoah Company | Mowing apparatus |
| EP1651026B1 (en) * | 2003-07-19 | 2010-03-24 | Wolf-Garten GmbH & Co. KG | Line trimmer |
| DE102012016026A1 (en) * | 2012-08-13 | 2014-02-13 | Auerswald-Wolff S.A.R.L. | Cutting head for trimmer used for removing floor plant e.g. grass, has cutting thread which is clamped between through concave ring and intermediate ring, so that output direction is determined by shape of inner contour of ring |
| CN203226032U (en) * | 2013-05-21 | 2013-10-09 | 正阳实业投资有限公司 | Knocking type pay-off grass trimming head |
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| Publication number | Publication date |
|---|---|
| CN103814675A (en) | 2014-05-28 |
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Granted publication date: 20160518 Termination date: 20200311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |