EP3329152A1 - Noix d'entrainement pour chaine de type marine - Google Patents
Noix d'entrainement pour chaine de type marineInfo
- Publication number
- EP3329152A1 EP3329152A1 EP16763886.5A EP16763886A EP3329152A1 EP 3329152 A1 EP3329152 A1 EP 3329152A1 EP 16763886 A EP16763886 A EP 16763886A EP 3329152 A1 EP3329152 A1 EP 3329152A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chain
- groove
- drive nut
- nut
- drive
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 210000003608 fece Anatomy 0.000 description 9
- 239000010871 livestock manure Substances 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 208000014770 Foot disease Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241001311547 Patina Species 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 244000144980 herd Species 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/01—Removal of dung or urine, e.g. from stables
- A01K1/0132—Removal of dung or urine, e.g. from stables by means of scrapers or the like moving to-and-fro or step-by-step
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/30—Chain-wheels
- F16H55/303—Chain-wheels for round linked chains, i.e. hoisting chains with identical links
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H2055/363—Pulleys with special means or properties for lateral tracking of the flexible members running on the pulley, e.g. with crowning to keep a belt on track
Definitions
- the invention relates to the field of agricultural machinery.
- the invention relates to a drive nut for a marine type chain.
- the invention finds particular application in the chain drive scraper planes that push slurry, soft manure, manure strawy or thick out of the corridors or stabulations of a barn.
- drive chain Different types are known, for example square chain drive, roller chain drive, silent chain drive or marine chain drive.
- the marine chain is inexpensive and robust, which makes it interesting for use in the agricultural sector.
- a cylindrical imprinted nut generally includes on its crown chain link prints and a throat. When a portion of the chain is engaged on a fingerprint, one link in two is placed flat in fingerprints, the other links being partially housed in the groove on the edge.
- FR 2 991 551 describes, for example, a chain scraper of this type.
- impression nut requires several links to be engaged in the indentations and positioned perfectly flat at the bottom fingerprints, so as to form a winding arc sufficient for it to be properly trained.
- This fingerprinting technique has many disadvantages.
- the chain and the nut must be perfectly aligned at the risk of jumping out of the footprints, or in other words to derail.
- Another disadvantage of this technique is that the links of the chain subjected to repeated pulls relax with time, which induces an elongation of the chain.
- the footprints of the nut are then more consistent to marry the links of the chain that skips and / or patina. This disadvantage is all the more critical as the chain bathes in manure and carries solid waste, such as manure straw, which grease or obstruct the footprints.
- the chain can also twist or jump from the nut, rendering inoperative the scraper device, which requires maintenance. This phenomenon is all the more important as the chain is insufficiently stretched.
- the invention therefore particularly aims to overcome the disadvantages of the state of the art mentioned above.
- the object of the invention is to provide a marine type chain drive nut, intended to be used in the agricultural field, which is reliable over time and which limits the interventions and the maintenance and repair operations. maintenance.
- An object of the invention is also to provide a drive nut which remains engaged with a soiled chain, even by a thick manure, or with a twisted chain, without it jumps or derails.
- An object of the invention is also to provide a drive nut that allows to continue to drive a chain that has lengthened over time.
- Another object of the invention is to provide a drive nut which is simple to manufacture, and a reduced cost. 4. Presentation of the invention
- a marine type chain drive nut whose links have a diameter of between 8 and 20 millimeters in diameter to be used. in the agricultural field, comprising a main cylindrical groove between two side plates and a plurality of regularly spaced forks projecting radially from said groove, defining housing for receiving one link on two of said chain substantially flat.
- the flanges extend beyond the groove on a height substantially equal to the width of a link in the chain.
- the chain is effectively maintained in the nut and does not jump, even when it is not perfectly aligned with the nut or when it carries waste manure consisting of straws that will clutter the homes .
- the portion of the chain located in the nut can twist, that is to say rotate about its longitudinal axis of one or more turns, without the chain jumps.
- the links can relax with use and the chain lengthen without affecting the operation. Indeed, when the chain is new, the length of the links is lower than when the chain is used.
- the length of the housing delimited by the forks increases as a function of the radial distance.
- a link of a new chain penetrates deeper into the housing than a used link. But in both cases, the new or used link remains in contact with at least one of the forks defining its housing which transmits the traction force applied by a motor.
- the drive nut which is the subject of the invention, comprises one or more of the following characteristics, according to any operative technical combination.
- the flanges extend beyond the groove over a height greater than or equal to 40 millimeters, preferably greater than or equal to 50 millimeters.
- the flanges extend beyond the groove to a height of between 30 millimeters and 40 millimeters.
- the drive nut as described above is formed of steel.
- the forks are spaced a distance substantially equal to that of a link in the chain.
- the forks are formed of two teeth spaced 15 to 30 millimeters apart.
- a secondary groove is formed in the main groove, between the teeth of said forks.
- the links of the chain are better maintained even in the event of clogging of the dwellings with waste.
- the drive nut has braking means comprising a cylindrical shaft portion projecting from the outer face of one of the flanges, aligned with the axis of the nut.
- the drive nut has securing means with a drive shaft comprising an axial bore into which a keying groove opens.
- the drive nut can thus be secured reliably and without play with the drive shaft of a motor or a gear motor, possibly via a coupling means, and can be dismounted easily.
- Figure 1 is a perspective view of a traction unit of the scraper presented with reference to Figure 5;
- FIG. 2 is a side view of a drive shaft for marine chain according to the invention.
- Figure 3 is a sectional view along section A-A of the drive nut shown with reference to Figure 2;
- Figure 4 is a detail view of a fork of the drive nut shown in Figure 2;
- Figure 5 is a schematic perspective view of a manure scraper and / or slurry.
- FIG. 5 there is illustrated a wiper 550 equipping a barn 500 comprising a stall space 510 and a corridor 520.
- the scraper 550 is formed of a plane 560 driven in translation by a device 505, comprising two complementary identical traction modules 100A and 100B and a chain 160 fixed in the middle to the plane 560.
- the traction modules 100A and 100B are arranged at each end of the corridor 520 to be cleaned.
- One of the two traction modules 100A is intended to pull the plane 560 so that it pushes the waste bulky corridor 520 to a pit at one end 540 of the corridor, while the other module 100B is intended to shoot and thus bring back the plane in its initial parking position 530, located at the other end of the corridor.
- the plane 560 is guided by a slider 565 cooperating with a guide groove 525 formed in the floor of the corridor 520.
- one of the traction modules 100A or 100B is activated, it draws the plane by setting tension the chain portion 160 called stranded strand 162, the second traction module 100 is inactive, running freely the chain portion 163 forming a soft strand.
- the traction module 100A comprises a frame 150 mounted on a base 105, supporting at its top a geared motor 110 on the shaft of which is mounted a drive nut 200 disposed vertically of a return pulley 130 and a crate 140, also called tray, chain.
- the pulley 130 is mounted on the base 105, substantially at ground level and is aligned with the guide groove 525 of the plane, formed in the floor of the corridor 520.
- the part of the chain 162, fixed to the plane, leaves the groove 525 for guiding the plane and the pulley 130 sends it back to the nut 200.
- the chain portion 164 is stored in the tray 140.
- the pulley 130 has a guide groove 132 shaped to best maintain the chain 160 in place.
- This throat 132 has a width substantially greater than that of a link of the chain 160 and a depth substantially equal to half the width of the link.
- the winding arc of the chain 160 around the nut 200 is greater than 90 °.
- this winding arc is between 120 ° and 180 ° and preferably between 145 ° and 180 °.
- the bottom 141 of the tray 140 is perforated and raised by feet 142.
- the perforated bottom 141 allows, in addition, the evacuation of the rainwater that would otherwise accumulate in the tank 140 when the traction module 100A is located outside a building.
- a control module supplies electricity to the gearmotor of the traction module 100A and switches off the power supply of the gearmotor of the traction module 100B, which becomes inactive. Conversely, to return the plane 560 to the parking position 530, the control module cuts the power supply of the gear motor of the traction module 100A and supplies power to the geared motor of the traction module 100B, which becomes active.
- a mechanical coupling such as a clutch for example, is mounted between the motor shaft of the gear motor 110 and the shaft bearing the nut 200.
- This mechanical coupling can be temporarily rendered inactive and can engage or to disengage the nut 200 of the geared motor according to whether the pulling module which carries it is activated or not.
- the pulling module which carries it is activated or not.
- Figures 2 and 3 show detailed views of a drive nut 200 fitted to the traction modules 100A and 100B illustrated with reference to Figure 1, respectively side and section.
- the nut 200 is formed of a hub called 210 cylindrical core and two flanges 220 circular, welded to the core 210 and delimiting a first groove 215 also called principal.
- the flanges 220 extend beyond said groove over a height 260 of 45 millimeters.
- the flanges 220 comprise, on the internal face 221, teeth 240 of radial orientation spaced at a regular pitch.
- the two teeth 240 of the two flanges 220 are arranged vis-à-vis, each pair of teeth forming a fork 249.
- Each tooth 240 of one of the forks 249 has a similar profile according to the axial orientation of the nut, with a substantially constant width having two flanks with substantially parallel faces and rounded edges.
- the tooth 240 of the fork 249 shown in detail in FIG. 4 has a height h according to the radial distance between a foot circle corresponding to the diameter df of the cylinder forming the core 210 and a head circle of diameter d a delimiting the vertex of the tooth 240 of the fork 249.
- This height h of the tooth 240 of the fork 249 comprises a projection height h a and a height hf hollow.
- the hollow height hf corresponds in the proximal portion 244 of the tooth 240 of the fork 249 to a base 241 of constant thickness.
- the tooth 240 of the fork 249 has a recess 242 in its thickness.
- This recess 242 is the beginning of a portion 243 corresponding to the projecting height h a in which the thickness decreases uniformly to the distal end of the tooth 240 of the fork 249.
- the distal end tooth 240 is tangent with the inner face 221 of the flange 220.
- the dimensions of the nut and the pitch between each tooth 240 of the forks 249 are a function of the size of a mesh of the chain used.
- the thickness of the tooth 240 at the base 241 is such that between two teeth 240 vis-à-vis the fork 249, remains at the right of the throat 230 secondary, a space of dimension substantially greater than or equal to the section of a link of the chain 160.
- the tooth 240 of the fork 249 further comprises sidewalls 241 and 242 substantially parallel.
- the inner faces 221 of the flanges 220 are substantially parallel.
- Two successive forks 249 delimit a housing 250 for a chain link 160 to be driven.
- the flanks 241 and 242 of the teeth 240 of the forks 249 then serve as stops for the link of the chain 160 inserted in the housing, transmitting by contact the force produced by the geared motor to the chain 160 which is pulled.
- the chain can twist in the nut 200, without jumping and therefore continue to be driven by the nut 200. Similarly, the drive is assured even if the chain is completely tensioned, under the effect of the traction.
- a second groove 230 is formed on the core 210.
- This secondary groove 230 has a dimension in width substantially greater than or equal to the section of a link of the chain and at depth substantially greater than or equal to half the section of a link.
- the centering of the nut 200 on the motor shaft of the geared motor is provided by a central bore 231 formed machined in the core 210.
- This core 210 comprises in the axial direction of the bore a groove 232 to maintain in rotation by keying the 200 nuts on the shaft of the gearmotor.
- the core 210 of the nut 200 extends outside one of the flanges 220, along its axis, in the form of an outer cylindrical portion. This extension of the core makes it possible to equip the traction module with a brake in the form of a belt or a strap acting by friction on this outer cylinder.
- the assembly formed of the core 210 and the flanges 220 is obtained in casting by molding.
- the technique described above for making a chain drive nut can be used in different types of traction equipment or pulleys, for example to form a traction element of a chain of a lifting system or a docking system in a floating structure such as a ship, a platform or other.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Gears, Cams (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1501603A FR3039615A1 (fr) | 2015-07-27 | 2015-07-27 | Noix d'entrainement pour chaine de type marine |
FR1557204A FR3039616B1 (fr) | 2015-07-27 | 2015-07-28 | Noix d'entrainement pour chaine de type marine |
PCT/FR2016/051863 WO2017017346A1 (fr) | 2015-07-27 | 2016-07-19 | Noix d'entrainement pour chaine de type marine |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3329152A1 true EP3329152A1 (fr) | 2018-06-06 |
Family
ID=54186173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16763886.5A Pending EP3329152A1 (fr) | 2015-07-27 | 2016-07-19 | Noix d'entrainement pour chaine de type marine |
Country Status (6)
Country | Link |
---|---|
US (1) | US10321660B2 (fr) |
EP (1) | EP3329152A1 (fr) |
CA (1) | CA3018201C (fr) |
EA (1) | EA037079B1 (fr) |
FR (2) | FR3039615A1 (fr) |
WO (1) | WO2017017346A1 (fr) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB912908A (en) * | 1961-02-17 | 1962-12-12 | Parsons Chain Company Ltd | Sprockets |
GB1329027A (en) * | 1970-12-04 | 1973-09-05 | Simpson Ltd Lawrence | Rope and chain hauling device |
FR2343175A1 (fr) * | 1976-03-05 | 1977-09-30 | Cotibar | Noix d'entrainement pour chaine a mailles |
US4917234A (en) * | 1984-11-14 | 1990-04-17 | Seymour Timothy H | Wheel and chain power transmission machine |
US4645476A (en) * | 1985-06-18 | 1987-02-24 | Kennecott Corporation | Work conveyor sprocket and link assembly |
US6948450B2 (en) | 2003-01-31 | 2005-09-27 | Berg Equipment Corporation | Scraper for animal stalls |
NZ549054A (en) * | 2006-08-08 | 2009-06-26 | Vetus N V | Chain wheel with a number of chain link pockets |
IT1401872B1 (it) | 2010-09-21 | 2013-08-28 | Salvetti & Gervasi Di Bologni Fabio E C Snc | Gruppo di trazione a cavo per sistemi di pulizia di pavimentazioni del tipo a pala raschiante. |
DE102011055216A1 (de) | 2010-11-16 | 2012-05-16 | Peter Prinzing Gmbh | Entmistungseinrichtung sowie Verfahren zum Betrieb einer solchen Entmistungseinrichtung |
FR2991551B1 (fr) * | 2012-06-08 | 2015-05-29 | Covara | Racleur a lisier |
-
2015
- 2015-07-27 FR FR1501603A patent/FR3039615A1/fr active Pending
- 2015-07-28 FR FR1557204A patent/FR3039616B1/fr active Active
-
2016
- 2016-07-19 EP EP16763886.5A patent/EP3329152A1/fr active Pending
- 2016-07-19 US US15/748,435 patent/US10321660B2/en active Active
- 2016-07-19 CA CA3018201A patent/CA3018201C/fr active Active
- 2016-07-19 EA EA201890287A patent/EA037079B1/ru unknown
- 2016-07-19 WO PCT/FR2016/051863 patent/WO2017017346A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
CA3018201C (fr) | 2020-10-13 |
EA201890287A1 (ru) | 2018-08-31 |
FR3039616A1 (fr) | 2017-02-03 |
FR3039615A1 (fr) | 2017-02-03 |
EA037079B1 (ru) | 2021-02-03 |
FR3039616B1 (fr) | 2019-03-29 |
US20180213743A1 (en) | 2018-08-02 |
CA3018201A1 (fr) | 2017-02-02 |
US10321660B2 (en) | 2019-06-18 |
WO2017017346A1 (fr) | 2017-02-02 |
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Effective date: 20210910 |