Method for applying at least one wear edge to an auger blade, device for mixing and / or cutting feed, as well as feeding system
Patent Information
- Authority / Receiving Office
- NL · NL
- Patent Type
- Applications
- Current Assignee / Owner
- LELY PATENT NV
- Filing Date
- 2024-12-17
- Publication Date
- 2026-07-13
Smart Images
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Abstract
Description
Procedure for applying at least one wear edge to a jack blade, device for mixing and / or cutting feed, as well as a feeding system The invention relates to a method for applying at least one wear edge on a screw blade of a screw for use at a device for mixing and / or cutting feed for animals, such as cows. Lely's Vector® automatic feeding system is well-known. This The feeding system includes an autonomous feed mixer wagon, which is mobile over a subfloor, such as a floor. The feed mixer wagon includes a mixing bowl for the taking up a batch of feed. A mixing auger is installed in the holder, which is rotatable. for a predominantly vertical rotation centerline that can be driven for mixing and cutting of feed taken into the mixing container. The mixing auger comprises a core body, which the forms a mortar shaft. A mortar blade extends mainly spirally around the core body out. On the radial outer edge of the mortar blade are multiple cutting blades applied to cut the feed. The auger blade starts at the bottom of the mixing bowl with a leading edge that feeds from the bottom as the mixing auger rotates. picks up, so that already picked-up feed is moved upwards over the auger blade. At the upper end of the auger blade, the feed falls back down. During rotation of In the mixing auger, the feed is mixed and cut in the mixing holder. The lifespan of the mixing auger is limited. Animal feed, such as cows, is usually somewhat acidic, for example ensiled feed, such as grass silage. This gives lead to wear of the screw blade. The wear is also, and sometimes primarily, caused by sand or soil in the feed. The free outer edge of the auger blade is the most susceptible to wear. Especially due to wear on the outer edge of the auger blade the mortar must be replaced after a period of time. From DE 102021109033 A1 is a mixing auger for a feed mixer wagon. known. The mixing auger has an auger blade, which is formed by a plate body. A face of the outer edge of the plate body is strip-shaped Welded wear protection edge. The wear protection edge has a rectangular cross-section and a thickness corresponding to the thickness of the plate body, so that the plate body on the top and bottom of the jack blade essentially continuous through into the wear protection edge. The wear protection edge is designed as a straight or planar widening of the plate body in the radial direction of the mixing auger. However, welding on the wear protection edge is difficult and cumbersome. Moreover, the aggressive action of feed, and of sand and / or soil in the feed, can damage the shaft connection, creating a risk that the wear protection edge Disrupts as a result of weld failure. A goal of the invention is a simple and reliable method to provide for applying a wear edge to a screw blade of a screw for use at a facility for mixing and / or cutting animal feed, like cows. According to the invention, this objective is achieved by a method for the applying at least one wear edge to a mortar blade of a mortar pre-application at a facility for mixing and / or cutting animal feed, such as for cows, in the special dairy cows or beef cows, where the method involves the production or providing a mortar, which is equipped with a core body, for example a tubular or cylindrical shaft body, and a mortar blade, whereby the mortar blade extends around the nucleus, in particular substantially spiral, i.e. according to a helical line, and where the auger blade is provided with an inner rim, which the core body is attached, preferably by welding, and opposite the inner edge horizontal, free outer edge, whereby the application of the wear edge to the screw blade involves forming or applying a thickening edge on the outer edge of the jack blade, where the thickening edge is formed or applied by welding welding material on the outer edge of the jack blade. In contrast to the one described above, from DE 102021109033 A1 known wear protection edge, which is a separate part attached to the if the jack blade is welded, the wear edge according to the invention consists mainly of the welding material of the weld itself. The welding material is applied to the outer edge of the jack blade welded such that the welding material has a thickening edge on the outer edge of the forms a mortar blade. The thickening edge runs mainly spirally, i.e. in main part along a helical line. The thickened edge of the welding material forms the wear edge. The wear edge comprises the thickening edge, which is made of the welding material. The thickening edge on the outer edge of the mortar blade protrudes from the surface of the mortar blade. The thickening edge comprises a relatively large amount of sacrificial material that can wear away during use of the auger, significantly extending the lifespan of the auger extended. In addition, the application of the wear edge by welding on the thickening edge simple. Moreover, the thickening edge of the welding material is in main part fused with the material of the mortar blade, so that the wear edge very is reliably connected to the screw blade. According to the invention, it is possible that the thickening edge, viewed in axial direction of the jack, has a height, and, viewed in the radial direction of the jack, has a width where the height is smaller than the width. The thickening protrudes from the surface of the mortar blade, i.e. forms a raised edge. Due to the to make the thickening edge relatively low, i.e. the height of the thickening is smaller than the width thereof, the operation of the auger to move and mix feed remains. mainly guaranteed. In practice, it has surprisingly turned out that the transport and the mixing action of the auger with welded thickening edge even becomes slightly improved. Because the thickening edge is relatively wide, sufficient is simultaneously Sacrificial material added to increase the service life of the auger. It is noted that in the above-described, from DE 102021109033 A1 well-known mixing auger the wear protection edge a width has, which is greater than its thickness. However, this wear protection edge concerns a completely different design to increase the lifespan of the auger, because the the wear protection edge is a separate part and is not made of welding material. Furthermore, the thickness of this wear protection edge is determined by the thickness of the mortar blade, because the mortar blade at the top and bottom of the the auger blade must essentially run continuously. The relatively low and wide thickening edge of welding material can, according to the invention can be achieved in various ways. It is worth according to the invention the preference, which includes welding welding material onto the outer edge of the jack blade welding a first strip of welding material onto the outer edge of the jack blade, at least over a portion of the outer edge of the mortar blade, and then the in longitudinal direction laterally adjacent to that first strip welds of a second strip of welding material. The first and second strips of welding material form a double weld. The first and second strips of welding material are joined laterally, in the particularly fused, and together form the thickening edge on the outer edge of the mortar blade. By welding the thickened edge in two consecutive steps, i.e. as a first step, the first strip of welding material is welded on and then is welded on as a second step, the second strip of welding material remains thickening edge relatively low, so that the thickening edge facilitates the movement of feed through the does not adversely affect the mortar. At the same time, the thickening rim consists of two fused strips of welding material (double weld) sufficient sacrificial material to extend the lifespan of the auger. In this case, according to the invention, it is possible for the mortar to have a vertical jack is, i.e. designed to be rotatable around a substantially vertical rotation centerline, where the first strip of welding material is applied essentially along a radial end of the outer edge of the auger blade on the upper surface thereof, and whereby the second strip of welding material is applied to that upper surface on the radial inner side of the first strip of welding material. The It is preferable in this regard that the first strip of welding material in cross-section is larger than the second strip of welding material. The first strip of welding material is applied adjacent to the end of the outer edge of the mortar blade, i.e. at the radial outer end of the mortar blade. This is the area of the mortar blade that is most subject to wear due to the aggressive action of feed. The first strip of welding material forms sacrificial material in the most critical area of the mortar blade. The second strip of welding material, which is located radially within the first strip of welding material and is welded against the first strip of welding material, forms an additional protection against wear. In practice, the second strip of welding material will be first. wear away, and only then the first strip of welding material located radially outside of it. According to the invention, it is possible that the mortar is a vertical mortar, where the mortar blade extends around the nucleus from a lower leading edge to an upper end, and where the thickening edge is on the outer edge of the mortar blade extends from that front edge to near the upper end, preferably substantially continuous. The distance between the upper end of the thickening edge and the extreme upper end of the mortar blade is, for example, smaller than 50 cm, preferably smaller than 30 cm. Because in this case the thickened edge has been welded primarily onto the entire outer edge of the auger blade, the protection against wear is optimal, especially if the thickening edge runs essentially continuously, so that the entire outer edge of the the mortar blade or as large a part thereof as possible is provided with sacrificial material in the form of the welded thickening edge. According to the invention, it is possible that the mortar blade along the outer edge it is provided with multiple bolt holes for attaching cutting blades by by means of bolts, whereby the thickening edge, which is preferably substantially continuous is, at the location of the bolt holes is interrupted such that bolt heads of in the bolt holes, bolts inserted at a distance from the locally interrupted thickening edge lie. In this case, there is no overlap of the bolt heads and the thickened edge. In other words The thickened edge is interrupted in such a way that the thickened edge does not touch the bolt heads is in the way. The cutting blades can be held firmly and reliably by means of the bolt connections are attached to the jack blade, while the interruptions keep to a minimum to extend the lifespan of the auger as long as possible. According to the invention, it is possible in particular that an extra thickening edge is formed by the axling of welding material on an underside of the mortar blade from the lower front edge. The extra thickening edge has, for example a length of 1-50 cm, preferably 5-30 cm. The mortar blade comprises, for example, a angled scooping wing, which defines the leading edge of the mortar blade. The scooping wing is attached to an adjacent, essentially flat feed intake section, that is connected to a curved jack blade section, in particular by welding. The section from the outer edge of the jack blade from the leading edge to after the weld joint between the flat pickup section and the adjacent curved auger blade section is an area that is most susceptible to wear and tear due to the aggressive action of feed and sand and / or soil in the feed. Preferably, this area is not only on the top side, but also provided with a welded-on on the underside of the outer edge of the jack blade thickened edge. This is particularly beneficial for the service life of the auger. The mortar blade is made of a material, for example steel or stainless steel. According to the invention, it is possible that the welding material in essentially the same as the material of the mortar blade. In this case, it has welding material essentially the same composition as the material of the jack blade. This results in a reliable and durable connection of the thickened edge, which is made of the welding material, with the jack blade. On the other hand, according to the invention, it is also possible that the mortar blade is made of a material that has an initial hardness, and where the welding material differs from the material of the mortar blade and has a second hardness, which is greater than the first hardness. In this case, the welding material has a higher hardness, which is beneficial for the wear resistance of the thickened edge, which is made of the welding material. The method according to the invention can be applied to a new manufactured mortar and with a used mortar. Preferably, the thickening edge is applied in accordance with the invention during the manufacture of the mortar (ex works). After the thickening edge has worn away, can subsequently a new thickening edge according the invention be welded to increase the service life of the jack. After wear of the thickening edge, by using the jack, a new thickening edge can be placed on the the outer edge of the jack blade is applied by welding welding material onto the outer edge of the jack blade. If the new thickening edge is welded on in time, i.e. before the material of the auger blade itself is affected, the service life can the mortar as a whole be considerably extended. The invention also relates to a mixing device. and / or cutting of feed for animals, such as cows, in particular dairy cows or beef cattle, where the setup includes: a holder for taking up feed, for example a batch of feed, a jack, which is mounted in the holder and is rotatable and driveable for mixing and / or cutting feed contained in the container, and where the mortar comprises: . a nucleolus, for example a tubular or cylindrical axial body, . a mortar blade, which extends around the core body, in the particularly spiral-shaped, i.e. along a helical line, whereby the The mortar blade is provided with an inner rim, which is attached to the core body. attached, and an opposite inner edge lying, free outer edge, where the outer edge of the mortar blade is provided with a wear edge, which is formed by a thickening edge that has been applied by the |lasing of welding material onto the outer edge of the mortar blade. The equipment for mixing and / or cutting animal feed, which is provided with a wear edge in accordance with the invention has the same technical effects and benefits as described above regarding the method for the applying a wear edge to a screw blade of a screw for use with a such an establishment. The measures of the described above and in the sub-conclusions method according to the invention can be applied accordingly to the apparatus for mixing and / or cutting animal feed according to the invention, which is provided with a wear edge in accordance with the invention. Under venNijzing to the above The technical effects and benefits described in the methodology can be incorporated into the setup. for mixing and / or cutting animal feed, which is provided with a wear edge according to the invention, the following measures shall be applied in particular. In a embodiment in accordance with the invention, the thickening edge runs in essentially spiral-shaped, i.e. following a helical line. According to the invention, it is also it is possible that the thickening edge, viewed in the axial direction of the jack, has a height, and, viewed in the radial direction of the screw, has a width where the height is smaller than the width. In a preferred form of execution according to the invention, the thickening edge of welding material on the outer edge of the jack blade a first strip of welded welding material over at least a portion of the outer edge of the jack blade, and one welded laterally adjacent to that first strip in the longitudinal direction, second strip of welding material. In a embodiment according to the invention, the mortar is a vertical mortar, and the first strip of welding material is applied mainly along a radial end of the outer edge of the mortar blade on the upper surface thereof, whereby the a second strip of welding material has been applied to that upper surface on the radial inside of the first strip of welding material. According to the invention, it is also possible that the first strip of welding material is larger in cross-section than the second strip of welding material. In a embodiment according to the invention, the mortar is a vertical mortar, where the mortar blade extends around the nucleus from a lower leading edge to an upper end, and where the thickening edge is on the outer edge of the mortar blade extends from that leading edge to near the upper end, preferably substantially continuous. In this case, it is possible that the mortar blade is along its outer edge equipped with multiple bolt holes for attaching cutting blades by means of bolts, where the thickened edge, which is preferably substantially continuous, for The position of the bolt holes is interrupted in such a way that the bolt heads fit into the bolt holes. the incorporated bolts are located at a distance from the locally interrupted thickening edge. In a preferred form of implementation according to the invention, an additional thickening edge created by welding welding material onto an underside of the mortar blade from the lower front edge. The welding material can be essentially the same as the material of the mortar blade. However, according to the invention, it is also possible that the mortar blade was made of a material that has an initial hardness, and where the welding material differs of the material of the mortar blade and has a second hardness that is greater than the initial hardness. In a preferred form of execution according to the invention, the mortar blade has of the auger a curved feed displacement surface for moving over it feed. The feed displacement surface extends around the core body. The in the Feed taken up in the container is transported along the during rotation of the auger feed displacement surface for mixing and / or cutting that feed. In particular is the feed displacement surface spiral-shaped or screw-bladed. Additionally, it can feed displacement surface be predominantly continuously curved, at least as seen in circumferential direction. It is also possible that the curved feed displacement surface, viewed in a radial cross-section, is essentially straight. According to the invention, it is preferable that the mortar has a vertical is a jack. In this case, the jack is rotatable about a substantially vertical centerline of rotation. The curved feed displacement surface of the auger blade is then located at a top side, i.e. forms a top surface. The holder has a bottom and a curved side wall, extending upwards from the bottom. The vertical screw is mounted essentially upright in the holder. The mortar blade starts at the bottom of the holder with a leading edge that at rotation of the auger picks up feed from the bottom, so that already picked-up feed over the upper surface of the screw blade is moved upwards. At the upper end of The auger blade drops the feed back down. The feed falling down forms a kind of casing that helps to move the feed moving upwards over the auger blade onto the to keep the auger blade. With a vertical auger, the aggressive action of feed, and of sand and / or soil in the feed, a greater negative influence on lifespan than with a horizontal jack, so that the advantages of the invention described above come to the fore emphatically. In an embodiment in accordance with the invention, the nuclei and the mortar blade made of steel, in particular stainless steel. Stainless steel is particularly good resistant to the aggressive effects of cow feed, such as silage, and also against sand and / or soil in the feed. The use of stainless steel increases the service life of the mortar. The core body and the mortar blade can also be made of steel and are coated with a corrosion-resistant coating, which is, for example, a hardening agent includes. In a preferred form of execution under the invention, the device is a feed mixer wagon. The feed mixer wagon is designed for mixing and / or cutting feed and the dispensing and / or laying down of the mixed and / or chopped feed at a Feeding place for animals, such as cows, in particular along a feeding fence for the animals. According to the invention, it is possible that the feed mixer wagon is self-propelled and unmanned. and / or autonomous. The benefits of the invention are clearly evident in a autonomous feed mixer, which typically mixes smaller quantities of feed, but is used longer on average per day, causing the auger to wear out faster. The mortar according to the invention, however, also has advantages with other mixing devices for animal feed. The device according to the invention can be a conventional feed mixer wagons, which are, for example, self-propelled or designed to to be drawn, as by a tractor. The device according to the invention can further form a stationary mixer, which is used, for example, in a feeding system for feeding animals, such as an automatic feeding system. The invention also relates to a feeding system for feeding. of animals, such as cows, where the feeding system includes: a feeding barrier, for example in a stable with a living area for keeping animals, and a feeding alley extending along the feed barrier, in particular at the side of the feeding gate opposite the living area, where the feeding system comprises a feed mixer wagon as described above, and the feed mixer wagon is preferably designed to move autonomously through the feed alley move and release feed along the feed barrier. The invention will now be explained in more detail by means of an in the Execution example shown in the figures. Figure 1 shows a schematic top view of a feeding system for the feeding of animals according to the invention. Figure 2 shows a partially cut-up perspective view of a feed mixer wagon of the feeding system shown in Figure 1 according to the invention. Figure 3 shows a perspective view of the mortar of the one in Figure 2. feed mixer wagon shown. Figure 4 shows a perspective view and an enlarged detail of a part of the jack shown in Figure 3, where a first strip of welding material has been installed. Figure 5 shows a perspective view and an enlarged detail of a part of the mortar shown in Figure 3, where a second strip of welding material has been applied adjacent to the first strip of welding material. A feeding system for feeding animals, in particular cows 4, such as dairy cows or beef cows, is indicated in its entirety by 1 in Figure 1. In this The example of implementation is feeding system 1 installed in a barn 2 with a living space 3 for keeping the cows 4, in which cubicles 5 are located. The Living space 3 comprises two feeding gates 6 in this execution example. On the opposite the living space 3 Lying side of each feed barrier 6 a feeding aisle 7 extends. In this implementation example, feeding system 1 forms an automatic feeding system. This feeding system includes a feed storage system located outside the barn. 2 is located (not shown). There are multiple feed types in the feed storage system. stored, such as silage, hay, and maize. The feed stock system contains, for example, an amount of food for several days, for example 1-5 days, or for a longer period, such as a few weeks or even months. Feed system 1 comprises an autonomous feed mixer wagon 9. The Feed mixer wagon 9 is self-propelled and unmanned. Feed mixer wagon 9 is designed to to be loaded with feed from the feed storage system. The feed mixer wagon 9 is further carried out for mixing and cutting the loaded feed, and for dispensing the mixed and chopped feed to the cows 4. Therefore, the cows are 4 automatically fed. The feed mixer wagon 9 comprises a chassis with wheels 11, with which the feed mixer wagon 9 is movable over a floor of the feed alley 7, the yard of a farm or other subsoil. In this implementation example, the includes feed mixer wagon 9 a foronNiel and two eightNiels. The feed mixer wagon 9 can however also have been executed differently. The feed mixer wagon 9 includes a drive and steering system for the driving and steering the propellers (not shown). The drive and The steering system comprises at least an electric drive motor. An electronic The control system is connected to the drive and steering system to regulate it. (not shown). The feed mixer wagon 9 also includes a battery system for storage. of electrical energy (not shown). The battery system is connected to the drive and steering system and the control system. A charging station 8 is provided for charging the battery system of the feed mixer wagon 9. In this implementation example, loading station 8 comprises a 10A charging station coupling that can be mechanically connected to a feed mixer coupling 10b to make a plug connection. Although it Loading station 8 in Figure 1 is shown at the end of feed aisle 7. 8 in practice usually placed with the feed storage system. TenNijl the feed mixer wagon 9 is positioned in charging station 8 to charge the battery system, can the feed mixer wagon 9 will then be filled with feed. The loading station 8 forms in this case simultaneously a feed loading station. By regulating the drive and steering system, the speed and the direction of movement of the feed mixer wagon 9 be determined. By means of The control system allows the feed mixer wagon 9 to drive a route autonomously to deliver feed. deliver to the cows 4. However, it is also possible that the feed mixer wagon is 9 suspended from a guide rail (not shown). As shown in Figure 2, the feed mixer wagon 9 comprises a holder 12 for taking up a batch of feed. Holder 12 is mounted on the base of the feed mixer wagon 9. The holder 12 comprises a bottom 14 and a continuous side wall 15 which extends upwards from the bottom 14. In Figure 2, the circular side wall 15 partially worked up to make the interior of the holder 12 visible to make. For distributing the feed along one or more of the feed barriers 6 in stall 2 has an elongated dispensing opening in the side wall 15 of holder 12. installed, which can be closed off by an elongated sliding door (not shown). The The sliding door can be moved between a closed and an open position. In the closed position of with the sliding door the delivery opening is completely closed. In the open position, the delivery opening at least partially released by the sliding door releases to the to dispense feed from container 12. Feed mixer wagon 9 includes a feed pushing device for pushing remaining feed located along the feed barrier 6 and feed dispensed from the holder 12 in a direction perpendicular to the direction of travel T of the feed mixer wagon 9, in particular for the forming a swath-shaped heap of pushed-down feed along a feed barrier 6. In this implementation example: the feed pusher device includes a rotating skirt 18. In the holder 12 is a mortar 13 for mixing and / or cutting in the holder 12 feed is applied. The auger 13 is driveable and rotatable to a substantially vertical rotation centerline 16, i.e. the jack 13 is a vertical jack. The Screw 13 comprises a tubular core body 20, which forms the screw shaft. The core body 20 is mainly closed at the top by a flat closing plate 23 (see figure) 3), which is covered by a lid 19. The nucleus 20 is in this execution example made of stainless steel. The mortar 13 comprises a mortar blade 21, which surrounds the nucleus 20 extends. The mortar blade 21 starts at the bottom 14 of the holder 12 with an oblique angle scooping wing 24 with a lower leading edge 25 which, upon rotation of the auger, fed 13 picks up 14 from the bottom. The scooping wing 24 is attached to an adjacent, essentially flat feed intake section 29 of the auger blade 21. The scooped-up feed ends up on the feed intake section 29, which runs mainly horizontally. It Feed intake section 29 is connected to a curved auger blade section 32. The curved mortar blade section 32 runs mainly spirally or propeller-shaped around the nucleus 20. As shown in the figures, the radius is of the mortar blade 21, viewed from bottom to top, gradually smaller. In other words, the auger blade 21 becomes progressively narrower towards the top. The ingested feed is over moved the upper surface of the auger blade part 32 upwards. At the upper end from the auger blade 21 the feed falls back down. The downward falling feed forms a kind of casing that helps to move the upward movement over the auger blade 21 to keep feed on the auger blade 21. The scooping wing 24, the feed intake section 29 and the auger blade section 32 in this execution example are made of stainless steel. The material of the auger blade 21 with the scooping wing 24, the feed intake section 29 and the mortar blade part 32 is the same as the material of the core body 20. The scooping wing 24, the feed intake section 29 and the auger blade section 32 are on the core body 20 and welded together. The curved mortar blade part 32 can be composed of multiple welded jack blade sections (not shown). The core body 20 and the auger blade 21 with the scooping wing 24, the feed intake section 29 and the mortar blade part 32 form a single unit. The mortar blade 21 encloses an inner rim 26, which is attached to the nucleus 20 welded. The jack blade further comprises a free 26 lying opposite the inner edge outer edge 27. The outer edge 27 runs mainly spirally, i.e. according to a helical line. As shown in Figure 2, multiple cutting blades 22 are for cutting feed attached to the auger blade 21. The cutting blades 22 protrude radially relative to of the spiral outer edge 27 of the mortar blade 21. The cutting blades 22 are attached to the jack blade 21 by means of bolt connections. In this execution example, the mortar blade 21 has two for each cutting blade 22. bolt holes 31 (see figure 3). The cutting blades 22 each have two corresponding bolt holes (not shown). The bolt holes of the cutting blades 22 can be aligned with the bolt holes 31 of the jack blades 24, so that bolts can be inserted into them be. The bolt holes 31 of the jack blade parts 24 are in cross-section mainly square. By means of the square bolt holes 31, a particularly durable Attachment of the cutting blades 22 possible. The mortar blade 21 shown in Figure 3 has a curved feed displacement surface 28 for moving feed over it. At the vertical auger 13 according to this execution example, the feed displacement surface forms 28 of the mortar blade part 24 a curved upper surface of the mortar blade 21. As the Most clearly shown in figures 3, 4 and 5 is on the outer edge 27 of the mortar blade 21 a thickening edge 30 applied. The thickening edge 30 forms a wear edge of sacrificial material. Due to the use of the auger 13, the thickening edge 30 wears slowly away. The free outer edge 27 of the auger blade 21 is most subject to wear caused by the aggressive action of feed, and of sand and / or soil in the feed. By by providing the outer edge 27 with the thickening edge 30, it is possible to extend the service life to significantly extend the mortar 13. The thickening edge 30 is according to the invention formed by welding welding material onto the outer edge 27 of the jack blade 21. In other words, the thickening edge 30 is made of the welding material. In this execution example, the welding material differs from the material of the mortar blade 21. The welding material has a higher hardness than the stainless steel of the jack blade 21. The welding material, however, can also be the same material as the material of the mortar blade, i.e. stainless steel with essentially the same compound. The welding material is welded on in two steps. First, a first strip 33 of welding material welded to the outer edge 27 of the jack blade 21. This is shown in Figure 4. The first strip 33 of welding material is applied adjacent to the head end 37 of the outer edge 27 of the auger blade 21, i.e. at the radial extreme outer end of the auger blade 21. As a second step, subsequently adjacent in the longitudinal direction a second strip 34 of welding material welded onto that first strip 33, as shown in Figure 5. The second strip 34 of welding material is radially within the first strip 33 of welding material applied and against the first strip 33 of welding material welded on. The first and second strips 33, 34 of welding material form a double weld. The first and second strips 33, 34 of welding material lie laterally joined and are fused together. The welded strips 33, 34 together form the thickening edge 30 on the outer edge 27 of the auger blade 21. In practice, first the wear away the second strip 34 of welding material, and only then the radial outside of it located, first strip 33 of welding material. By welding the thickening edge 30 in two consecutive steps, i.e. first the first strip 33 of welding material and then the second strip 34 of welding material, the thickening edge 30 remains relatively low. The welded thickening edge 30 has, viewed in the axial direction of the jack 13, a height h, and, viewed in the radial direction of the jack 13, a width W (see Figure 5). The height h is smaller than the width W. As a result, the thickening edge 30 has little to no influence on the operation of the auger 13 to move, mix and / or cut the feed. Surprisingly, it has been shown in practice that the thickening edge 30 even has a positive has an effect. At the same time, the thickening edge contains 30 strips made of two fused together 33, 34 of welding material (double weld) sufficient sacrificial material to the service life to extend the mortar 13. The thickening edge 30 is essentially continuous from the leading edge 25 to a distance from the upper end (see figure 3). The thickening edge 30 is welded mainly on the entire outer edge 27 of the jack blade 21. As As shown in figures 3, 4 and 5, the thickening edge is 30 at the location of the bolt holes. 31 interrupted by interruptions 35, such that bolt heads of in the bolt holes embedded bolts are located at a distance of 30 from the locally interrupted thickening edge. In this case, there is no overlap of the bolt heads and the thickening edge 30. Maw the thickening edge 30 is interrupted by the interruptions 35, such that the thickening edge 30 does not obstruct the bolt heads. The clearance between the thickening edge 30 and the bolt heads are, for example, at least 3 mm. The cutting blades 22 can be securely and reliably attached using the bolt connections at the auger blade 21, tenNijl the interruptions remain minimal to the lifespan of to make the mortar as long as possible. In this execution example, an extra thickening edge 36 has been applied to an underside of the mortar blade 21 from the lower front edge 25. The extra thickening edge 36, for example, has a length of 1-50 cm, preferably 5-30 cm, so that the extra thickening edge 26 extends beyond the weld joint between the feed intake section 29 and the curved auger blade section 32. The extra thickening edge 36 is formed by welding welding material to the underside of the outer edge 27 of the mortar blade 21. The extra thickening edge 36 is in this execution example on the same manner as the thickening edge 30 applied to the top formed by the Applying two continuous strips of welding material (not shown). The invention is not limited to that shown in the figures. implementation example. The feed mixer wagon, for example, does not need to be autonomous, but can also be driven by a driver, such as a farmer. Instead of self-driving the feed mixer wagon can furthermore be designed to be towed by a tractor. Additionally, the auger of the feed mixer wagon described above can be applied to a stationary mixer. Furthermore, it is possible that the jet of the auger blade 21 does not increase from top to bottom, but is constant.
Claims
1. Procedure for applying at least one wear edge to a auger blade of an auger (13) for use with a mixing and / or device cutting feed for animals, such as cows, where the method includes: the manufacture or provision of a mortar (13), which a nuclear body (20) and includes a mortar blade (21), where the mortar blade is around the nuclear body extends, in particular substantially spirally, and where the mortar blade is provided with an inner rim (26), which is attached to the core body is attached, and one opposite the inner edge (26), free outer edge (27), with the characteristic that the application of the wear edge to the screw blade comprises the forming a thickened rim (30) on the outer edge of the mortar blade, where the The thickening edge is formed by welding welding material onto the outer edge of the mortar board.
2. Method according to conclusion 1, where the thickening edge (30), seen in axial direction of the jack (13), has a height, and, viewed in radial direction of the mortar (13), has a width where the height is less than the width.
3. Method in accordance with claim 1 or 2, involving the welding of welding material on the outer edge of the mortar blade the welding of a first strip (33) of Lashing material on the outer edge of the mortar blade, and then in the longitudinal direction laterally adjacent to that first strip Iassen of a second strip (34) of IAS material.
4. Method according to claim 3, where the jack is a vertical jack, and where the first strip (33) of Ias material is applied mainly along a radial head (37) of the outer edge of the screw blade on its upper surface, and where the second strip (34) of Ias material is applied to that upper surface on the radial inner side of the first strip of Ias material.
5. Method according to conclusion 4, whereby the first strip (33) of Ias material in cross-section is larger than the second strip (34) of Ias material.
6. Method of working in accordance with one or more of the preceding claims, whereby the thickening edge (30) extends mainly in a spiral pattern.
7. Method of working in accordance with one or more of the preceding claims, whereby the mortar is a vertical mortar, and in which the mortar blade extends around the nucleus from a lower leading edge (25) to an upper end, and where the thickening edge on the outer edge of the mortar blade extends from that front edge (25) to near the top end, preferably substantially continuous.
8. Method according to conclusion 7, whereby the mortar blade along the outer edge it is equipped with multiple bolt holes (31) for attaching cutting blades by means of bolts, whereby the thickening edge, which preferably mainly is continuous, is interrupted at the bolt holes such that bolt heads of bolts inserted in the bolt holes at a distance from the locally interrupted thickening edge lies.
9. Method according to conclusion 7 or 8, with an additional thickening edge (36) is formed by heaving heaving material onto the underside of the mortar blade from the lower front edge.
10. Method of working in accordance with one or more of the preceding claims, whereby the as material is essentially the same as the material of the screw blade.
11. Method in accordance with one or more of claims 1-9, where the mortar blade is made of a material that has an initial hardness, and where the welding material differs from the material of the mortar blade and has a second hardness, which is greater than the first hardness.
12. Method of working in accordance with one or more of the preceding claims, whereby after wear of the thickened edge (30) from use of the mortar, a new The thickening edge on the outer edge of the mortar blade is formed by the welding of Welding material on the outer edge of the auger blade.
13. | device for mixing and / or cutting animal feed (4), such as cows, where the setup includes: a holder (12) for taking up feed, a screw (13), which is fitted in the holder and rotatable and is capable of being driven for mixing and / or cutting of substances contained in the holder feed, and where the auger comprises: . a nuclear body (20), . a mortar blade (21), which extends around the nucleus, in the particularly spiral-shaped, where the mortar blade is equipped with a inner edge (26), which is attached to the nucleus, and a opposite the inner edge (26), free outer edge (27), characterized in that the outer edge of the mortar blade is provided with a wear edge, which is formed by a thickened edge (30) which is created by welding welding material on the outer edge of the jack blade.
14. |device according to claim 13, where the device is a feed mixer wagon (9) is.
15. Feeding system for feeding animals (4), such as cows, where the feeding system (1) includes: a feed barrier (6), for example in a stable (2) with a living area (3) for the loving animals, and a feeding passage (7) that extends along the feeding fence, in particular at the opposite the living area, lying side of the feed barrier, where the feeding system comprises a feed mixer wagon (9) as per claim 14, and the feed mixer wagon is preferably designed to move autonomously through the feed alley move and release feed along the feed barrier. 5524486T971110b71361 / 5