GB2403121A - Blade mounting for rotary tilling machines - Google Patents
Blade mounting for rotary tilling machines Download PDFInfo
- Publication number
- GB2403121A GB2403121A GB0314735A GB0314735A GB2403121A GB 2403121 A GB2403121 A GB 2403121A GB 0314735 A GB0314735 A GB 0314735A GB 0314735 A GB0314735 A GB 0314735A GB 2403121 A GB2403121 A GB 2403121A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tool
- blade
- mounting
- mounting plate
- engagement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/14—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools
- A01B33/142—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools the rotating shaft being oriented horizontally
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/14—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools
- A01B33/146—Attaching the tools to the rotating shaft, e.g. resiliently or flexibly-attached tools the rotating shaft being oriented vertically or steeply inclined
Abstract
A method of and a system for the mounting of a tool/blade 7 adapted for mounting to a support provided upon a rotatable shaft 14 by means of the engagement of a pair of spaced apart recesses or cut-outs 10,11 angularly inclined to each with a pair of support pegs/bars 17,16 bridging a pair of side by side tools mounting members 15 upstanding from the shaft 14 at such spacing the tool mounting plate 9 can be entered there between to allow said engagement and having a bore 12 for receiving a retaining member 19 engageable with the tool/blade and with corresponding bores 18 provided in the mounting members the arrangement being such as to retain tool/blade 7 between the members.
Description
24031 21
BLADE MOUNTING FOR ROTARY TILLING MACHINES
This invention relates to soil tilling apparatus mvolvmg the use of at least one soil engaging tool or blade that extends radially from a rotatable shaft commonly termed a rotor shaft in such manner that when a machine incorporating the rotor shaft is advanced whilst rotating the shaft with respect to the whilst gc,und the soil engaging tool or blade Is forced through the soil m such manner as to break the soil down in to a looser/fner filth In practice,, it Is a common practice to mount two or more radially directed tools/blades to the shaft 1 n These multi-blade arrangements can Involve the positioning ova sing' tool/blade at spaced intervals along the rotor shaft which Is intended to rotate about a generally horizontal axis. Groups of two or more radially directed tools/blades can be located at spaced intervals engthways ot' the shat't with the tools'blades of the group equiangularly spaced around the longitudinal axis of the rotor shaft.
1'i Conventionally, the rotor shaft is provided at each location at which Is desired to mount a tool/blade or group of tools/blades with a radially directed lug in the case of a single tool/blade and several lugs or a crcumferentially directed flange in the case where at least two tools/blades are involved.
Each tool is conventionally provided with a tool body that Is Intended to engage 21 with the ground/soil and an integral mounting plate having two suitably spaced bores that are alienable with correspondingly shaped bores provided m the associated the rotor shaft lug or flange. With this arrangement one lace of the mounting plate bears directly against the adjacent t'ace of the associated lug or flange The mounting plate is held In place by a pair of bolts. The bolts can be held in place by a suitable washer and nut combination in the case where the bore ( in the associated lug or flange is not threaded or in the case where the bores in the lugs or flanges are appropriately threaded by the engagement of the bolts m the threaded bores , Depending upon the intended use of the tool/blade the tool body is shaped and profiled to obtain a tool body formation with the appropriate working thickness and profile In practice, bearing in mind the operation that the tool/blade Is required to perform and the conditions that conventionally prevail when till fields, etc. the tools/blades wear and thus from time to time require removal for repair, sharpening or complete replacement.
In use of such tools/blades the forces acting on the tools/blad' s are not infrequently such that the tools/blades are subjected to considerahic lateral forces what can lead to distortions of the tools/blades such as to damage the mounting plate and the bolts associated therewith.
As result, this situation compounds the problems not infrequently met when it Is required to remove tools/blades from the rotor shaft flange and to replace the removed tools/blades.
As will be appreciated such a tool/blade Interchange is often carried out In the field, at a time when considerable user urgency Is involved to complete a particular task and not infrequently at a location where the conditions for such maintenance are not particularly suitable so that the change over of tools/blades can be unnecessarily time consuming.
It is an object of the present invention to facilitate the mounting and Remounting of such tools.
Broadly, according to a first aspect of the invention there is provided a method of mounting a tool/blade to a rotatable shaft mcludng the steps of engaging a first 1, part of a quick fit connection provided upon the tool with a complementary second part of the quick fit connection provided upon the shaft and operating means for retaining the two connection parts m their interconnected condition Broadly, according to a second aspect of the invention there is provided a method of mounting a tool/blade having a mounting plate to a rotatable shaft, Including the steps of providing the tool mounting plate with a pair of spaced apart recesses or cut-outs angularly incimed to each other, engaging the recesses with a pair of support bars badgmg a pair of side by side tool/blade mounting members upstanding from the shaft at such spacing the tool/blade mounting plate can be entered there between to allow said engagement, and holding the thus engaged tool/blade mounting plate by a retammg means adapted to cramp/hold the tool/blade mounting plate firmly between said tool/blade mounting members According to a further aspect of the invention these is provided a system for the mounting of a tool/blade adapted for mounting to a support provided upon a rotatable shaft by means of the engagement of a pair of spaced apart recesses or cut-outs angularly mclned with respect to each with a pair of support pegs/bars bridging a pair of side by side tool/blade mounting members upstanding from the shaft at such spacing the tool/blade mounting plate can be entered there between to allow said engagement there being a bore In the tool/blade for recevmg a retaining member engageable with corresponding bores provided m the mounting members the arrangement bemg such as to retain tool/blade between said tool mounting members Preferably, the recesses are formed in a mounting plate part integrally formed with the main body of the tool/blade, and wherein a single retaining member bore is provided in the mounting plate part.
Conveniently, the medial lines of'the recesses are substantially perp ndicular to each other In a preferred arrangement these axes intersect at the centre of the retaining member bore.
For a better understanding of the invention and to show how to carry the same into effect reference will now be made to the accompanying drawings In hch Figure 1 very schematically Illustrates a conventional known form of tool formation constructed t'or mounting to a rotor shaft; Figure 2 very schematically Illustrates a tool fonnaton incorporating the concepts of the invention and constructed for mounting to a rotor shaft, and figure 3 very schematically illustrates tool 1'onnatons of figure 2 when mounted to a rotor shaft with only a fragmentary part of the tool formations and the shat't being shown Referring now to figure I which as mentioned depicts no very schematic known form a tool/blade I Intended to he mounted m conventional manner to a lug or flange of a rotor shalt not shown. The tool/blade 1 includes profiled tool/blade forming part 2 and a mounting plate 3 The mounting plate 3 is provided with two spaced apart bores 4 by means of which the tool/blade can be secured by bolts (not shown) engaging the bores to correspondingly sized and spaced holes provided In the associated mounting lug or flange It will be appreciated that the blade body would be profiled and shaped depending upon the intended operational function of the tool/blade 1. For example, In the -s- F'gure, the body is schematcally shown as tapering to a pomt 5 and incorporating a curved stf'fenmg rib formation 6 In use the body 2 will be subjected to considerable stresses and strams together with wear. On consequence of such is, as mcntoned, the need to replace the tools/blades 1. In practice, it has been found that the replacement of tools/blades as shown in Figure I Is excessively time consuming, particularly when the replacement is required to be carried out In the field during use of a machine utlsng the tools/blades I In practice, it Is not int'requently the case that one or more bolts are dit't'icult to remove as a result of, for example, distortion of the bolts resulting from In use forces imposed on the tools/blades.
Referring now to figure 2 this Figure very schematically Illustrates a tool/blade 7 incorporating the concepts of the Invention, The tool/blade 7 shown therein intended to be mounted m conventional manner to a lug or flange of a rotor shat't not shown. 'I'he tool/blade 7 includes profiled tool /blade Longing body 8 and a mounting plate 9 The mounting plate 9 incorporates two generally IJ-shaped recesses 10 and 11 that face away from each other. Convemently, the medial lines of the recesses are substantially perpendicular to each other. In a preferred arrangement these axes Intersect at the centrc of the retaining member bore 2a The mounting plate 9 Is also provided with a bore 12 for receiving a bolt (not shown in Figure 2) by which the tool/blade 7 is secured to its supporting flange arrangement (not shown In Figure 2).
It will be appreciated that as with the tool/blade of Figure 1 the blade body 8 ) 1 would be profiled and shaped depending upon the intended operational function of the tool/blade 1. For example, In the Figure 2 the body 8 is shown as having an angular twist and incorporating a nonpointed end e., a spade end 13 The manner in which the tool/blade of figure 2 is mounted to the rotor shaft will be considered In relation to l pure 3.
Referrmg now to Figure 3, which schematically '11usirates a fragmentary portion of' a rotor shat't 14. The portion depicted Is provided with two circumferential flanges 15 which are welded or otherwise secured to the shaft 14 and are n separated by a distance that Is a smooth clearance fit with respect to the toolA:>lade mounting plate since the latter during the mounimg of'lhe tool/blade 7 to the rotor shalt is required to enter between the two flanges 15 At the locations at which it Is required to mount the tools/blades the two flanges are bridged by pegs/bars or the like 16,17 over which the recesses 10 and I I m the tool/blade mounting plate 9 are Intended respectively to engage.
In mounting a tool/blade 7 the mounting plate 9 Is inserted between the flanges 15 at such angle with respect to the flange pegs or bars 16,17 that the slot recess 10 Is able initially to engage with the peg/bar 17. Once this engagement has been achieved the tool/blade mounting plate 9 Is pivoted about this peg or bar 17 so as 2n lo cause the other recess 11 to engage with the pegibar 16.
When this setting has been achieved the bore 12 in the mounting plate 9 becomes aligned with complementary in lme bores 18 provided m the mounting flanges. A bolt 19 Is then inserted and is held in place either by use of a nut or by engagement of the bolt thread wth a thread provded on an appropriate one of the 1, flanges Once the bolt 19 has been secured held m place the mounting plate 9 Itself Is firmly and securely held m its operational setting relative to the flanges 15 and thus the rotor shaft 14.
It will be noted from l:'gure 3 that a consequence of the mode of connecting the tools/blades to the shaft mounting flanges 15 has the effect that the forces arsmg from the use of the tool tends to push the walls of the recess 10 into firmer engagement with its associated peg 17, and to cause the walls of the recess 11 1 r, hook more firmly against the peg 16 It will be appreciated that the tool/blade mounting plate 9 will be firmly sandwiched between the flanges 15 and thereby being significantly protected In relation to lateral forces and that In relation to forces arising from the rotational movement of the shaft such forces are transmitted to the shaft be way of the 1 5 pegs/bars thereby avodmg excessive loadmg of the threads ot'the bolts It will be noted that in order to replace a tool/blade 7 it Is only necessary to remove the bolt 19 Since the latter has not formed the sole resistance to rotational movement during; use, the risk of distortion is at least reduced so that the withdrawal of the bolts Is not unduly Impeded. Once the bolt 19 has been an removed it Is merely required to rock the tool/blade 7 relative to the flanges 15 release the recesses 10 and 1 I t'rom the pegs/bars 16 and 17 and then to lift the mounting plate away from engagement between the two flanges 15.
From the above it will be noted that the relative arrangement of Ihe support pegs/bars] 6 and 17 and the recesses/cut outs 10 an 1 1 is such that recess/cut out 11 is arranged to define a hook 1'ke part providing a regon opening in a first direction, and adapted for engagement with the peg/bar 16, and the recess or cut out 10 opens in a direction transverse to said first direction, the arrangement being such that following engagement of the recess/cut out 11 with the pegbar 16 the tool/blade 7 can be pivoted thereupon to bring the recess/cut out 10 into engagement with the peg/bar 17 whereby when the recesses/cut outs are so engaged the tool/blade 7 is located in its required operational position Whilst the Figures of the drawings have Illustrated particular forms of the tool/blade body it will be appreciated that particular shaping and construction of n the tool/blade body will be set by particular application ofthe tool Thus, for example, the tool/blade body could comprise a length of sheet material deformed into an arcuate shape so that in use an arcuate edge of the tool/blade Is radially swept around the shaft axis.
Claims (8)
1. A method of mounting a tool/blade to a rotatable shaft including the steps of engaging a first part of a quick fit connection provided upon the tool/hlade with a complementary second part of the quicl; fit connection provided upon the shaft and operating means for retaining the two connection parts in their interconnected condition.
2. A method of mounting a toollblade having a mounting plate to a rotatable shaft, including the steps of providing the tool mounting plate with a pair of spaced apart recesses or cut-outs angularly inclined to each other, engaging the recesses with a pair of support bars bridging a pair of side by side tool/blade mounting members upstanding t'rom the shat't at such spacing the tool/blade mounting plate can be entered there between to allow said engagement, and holding the thus engaged tool/blade mounting plate by a retammg means adapted to cramp/hold the tool/blade mounting plate firmly between said tool/blade mounting members.
3. A system for the mounting of a tool/blade adapted t'or mounting to a support provided upon a rotatable shat't by means of the engagement of a pair of spaced apart recesses or cut-outs angularly mcimed to each with a pair of support pegs/bars bridging a pair of side by side tool/blades mounting members 2n upstanding from the shat't at such spacmg that the tool/blade mounting plate can be entered there between to allow said engagement, said tool/blade mounting plate having a bore for receiving a retaining member engageable with the tool/blade and with corresponding bores provided in the mounting members, the arrangement being such as to retain tool/blade between said tool mounting 2 5 members. l - 1 O
4. A system as claimed in claim 3, and wherem the recesses are formed m a mounting plate part integrally formed with the mam body of the tool/blade, and wherem a smgle retaining member bore Is provided in the mounting plate part
5. A system as claimed m claim 3 or 4, and wherein the relative arrangement of the support pegs/bars and the recesses/cut outs is such that a first recess/cut out Is arranged to define a hoof; like part providing a region opening in a first direction, and adapted t'or engagement with a first peg/bar, and the second recess or cut out opens in a direction transverse to said first direction, the arrangement being such that following engagement of the first recess with the first peg/bar the tool/hlade 1 o can be pivoted thereupon to bring the second recess /cut out Into engagement with the second peg/bar whereby when the recesses/cut outs are so engaged the tool/blade is located m its required operational position
6. A system as claimed m claim 3, 4 or 5, and wherein, the medial hnes of the recesses/cut outs are substantially perpendicular to each other
7. A system as claimed m claim 6, and wherein said axes intersect at the centre of the retaining member bore
8. A method of mounting a tool/blade to a rotatable shaft substantially as herem before described with reference to figures 2 and 3 of the accompanying drawings 9 A system for mounting a tool/blade to a rotatable shaft substantially as herein before described with reference to Figures 2 and 3 of the accompanying drawings
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0314735A GB2403121B (en) | 2003-06-25 | 2003-06-25 | Blade mounting for rotary tilling machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0314735A GB2403121B (en) | 2003-06-25 | 2003-06-25 | Blade mounting for rotary tilling machines |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0314735D0 GB0314735D0 (en) | 2003-07-30 |
| GB2403121A true GB2403121A (en) | 2004-12-29 |
| GB2403121B GB2403121B (en) | 2006-09-20 |
Family
ID=27637255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0314735A Expired - Fee Related GB2403121B (en) | 2003-06-25 | 2003-06-25 | Blade mounting for rotary tilling machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2403121B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896948A1 (en) * | 2006-02-08 | 2007-08-10 | Sas Dairon Soc Par Actions Sim | DEVICE FOR FASTENING BLADES TO SOLIDARY FLANGES OF A ROTARY SHAFT FOR AGRICULTURAL MACHINE. |
| EP1992210A1 (en) * | 2007-05-15 | 2008-11-19 | K.I. Konstantinidis & Co. AG | Asparagus ridge flail rotor cultivator |
| EP2591649A1 (en) | 2011-11-11 | 2013-05-15 | Howard Ibérica S.A. | Quick fit system for fitting a blade in an agricultural machine and corresponding agricultural machine. |
| ITPD20120293A1 (en) * | 2012-10-09 | 2014-04-10 | Valentini Antonio S R L | MILLING UNIT FOR ROTARY TILLER MACHINE |
| NL2012704A (en) * | 2012-10-30 | 2014-05-14 | Redexim Handel En Expl Mij Bv | ROTORAS FOR USE IN AERATION DEVICE. |
| EP2674028A3 (en) * | 2012-06-14 | 2015-01-07 | Mayer Verwaltungs GmbH & Co. KG | Cutting blade holder |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859317A (en) * | 1958-01-29 | 1961-01-18 | Borg Warner | Agricultural disc mounting |
| US4214840A (en) * | 1979-01-18 | 1980-07-29 | J. H. Beales Steel Fabricators, Ltd. | Quick-release coupler |
| AU3594984A (en) * | 1983-12-06 | 1985-06-13 | Howard Rotavator Pty. Ltd. | Rotary hoe with locating elements to receive tools |
| EP1208729A1 (en) * | 2000-11-24 | 2002-05-29 | F. W. Pettit Limited | Improvements in or relating to power harrows |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1180425B (en) * | 1984-02-17 | 1987-09-23 | Prgoraro Spa | BILE REPLACEMENT AGRICULTURAL TOOL |
| DE8707829U1 (en) * | 1987-06-02 | 1987-09-17 | Rabewerk Heinrich Clausing, 4515 Bad Essen, De |
-
2003
- 2003-06-25 GB GB0314735A patent/GB2403121B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859317A (en) * | 1958-01-29 | 1961-01-18 | Borg Warner | Agricultural disc mounting |
| US4214840A (en) * | 1979-01-18 | 1980-07-29 | J. H. Beales Steel Fabricators, Ltd. | Quick-release coupler |
| AU3594984A (en) * | 1983-12-06 | 1985-06-13 | Howard Rotavator Pty. Ltd. | Rotary hoe with locating elements to receive tools |
| EP1208729A1 (en) * | 2000-11-24 | 2002-05-29 | F. W. Pettit Limited | Improvements in or relating to power harrows |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2896948A1 (en) * | 2006-02-08 | 2007-08-10 | Sas Dairon Soc Par Actions Sim | DEVICE FOR FASTENING BLADES TO SOLIDARY FLANGES OF A ROTARY SHAFT FOR AGRICULTURAL MACHINE. |
| US7331402B2 (en) | 2006-02-08 | 2008-02-19 | Sas Dairon | Device for attaching blades to rings connected to a rotating shaft for an agricultural machine |
| EP1992210A1 (en) * | 2007-05-15 | 2008-11-19 | K.I. Konstantinidis & Co. AG | Asparagus ridge flail rotor cultivator |
| EP2591649A1 (en) | 2011-11-11 | 2013-05-15 | Howard Ibérica S.A. | Quick fit system for fitting a blade in an agricultural machine and corresponding agricultural machine. |
| EP2674028A3 (en) * | 2012-06-14 | 2015-01-07 | Mayer Verwaltungs GmbH & Co. KG | Cutting blade holder |
| ITPD20120293A1 (en) * | 2012-10-09 | 2014-04-10 | Valentini Antonio S R L | MILLING UNIT FOR ROTARY TILLER MACHINE |
| EP2719269A1 (en) * | 2012-10-09 | 2014-04-16 | Valentini Antonio S.r.l. | Cutter unit for a rotary tiller machine |
| NL2012704A (en) * | 2012-10-30 | 2014-05-14 | Redexim Handel En Expl Mij Bv | ROTORAS FOR USE IN AERATION DEVICE. |
| US9713297B2 (en) | 2012-10-30 | 2017-07-25 | Redexim Handel- En Exploitatie Mij. Bv | Rotor shaft for use in an aerating device |
| US10178821B2 (en) | 2012-10-30 | 2019-01-15 | Redexim Handel- en Expoitatie Mij. BV | Rotor shaft for use in an aerating device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0314735D0 (en) | 2003-07-30 |
| GB2403121B (en) | 2006-09-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20080625 |