CA2252127A1 - Method and apparatus for forming reinforced auger flighting and a detachable reinforced auger flight - Google Patents
Method and apparatus for forming reinforced auger flighting and a detachable reinforced auger flight Download PDFInfo
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- CA2252127A1 CA2252127A1 CA002252127A CA2252127A CA2252127A1 CA 2252127 A1 CA2252127 A1 CA 2252127A1 CA 002252127 A CA002252127 A CA 002252127A CA 2252127 A CA2252127 A CA 2252127A CA 2252127 A1 CA2252127 A1 CA 2252127A1
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- Prior art keywords
- auger
- strip
- flight
- reinforced
- detachable
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K5/00—Making tools or tool parts, e.g. pliers
- B21K5/02—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes
- B21K5/04—Making tools or tool parts, e.g. pliers drilling-tools or other for making or working on holes twisting-tools, e.g. drills, reamers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G33/00—Screw or rotary spiral conveyors
- B65G33/24—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Earth Drilling (AREA)
Abstract
A method and apparatus for reinforcing the outer leading edge of an auger flighting and a detachable reinforced auger flight. The method involves applying a strip material and securing it to the outer leading edge of an auger flighting by welding. The strip material is welded to the auger flighting as it is maintained in contact with the edge of the flighting. The apparatus includes guide rollers and holding means adapted maintain the strip in continuous contact with the rotating auger while it is secured to the auger flight during the application. The detachable auger flight is able to be mounted onto existing auger flights, thereby extending the life of auger when the initial portion has been worn or damaged.
Description
Method And Apparatus For Forming Reinforced Auger Flighting And A
Detachable Reinforced Auger Flight Field of Invention This invention relates to a method and apparatus for forming a continuous reinforced flighting and a detachable reinforced auger flight. This invention also relates to reinforced auger flighting and the like in material transporting, conveying or propelling means, and to machines incorporating other like flighting.
Background Art Generally speaking, augers used for the grains or the like industries have a limited life due to the fact that the initial portion of the auger flights in contact with grains such as corn, wheat etc. perform a large percentage of the work which the auger is carrying out in conveying a commodity. This is due to the fact that augers, for example, have an initial loading section for receiving a source of grain from a dump truck , bin or the like, in fact, the inlet or receiving section of the auger is frequently located within a mass of the grain. As such, due to the initial feeding and conveying 2o action of the auger, wear on the outer or leading portions of the auger flight is significant which leads to the premature failure of the outer flight areas.
The problem of premature failure is also partially due to the fact that when an auger flight is formed from a flat band or sheet of metal, the formation of the helix causes the sheet metal to thin out at the outer edge areas of the auger flight. In other words, the thickness of the metal forming the auger flight actually decreases (sometimes to a thickness of 50% or more) from the inner flight sections to the outer portions of the flights. In order to provide an acceptable auger flight, with an outer auger edge having sufficient durability and projected longevity, the thickness of the initial metal used in forming the auger flights is consequently more than that actually required for the internal structure of the auger flights.
Detachable Reinforced Auger Flight Field of Invention This invention relates to a method and apparatus for forming a continuous reinforced flighting and a detachable reinforced auger flight. This invention also relates to reinforced auger flighting and the like in material transporting, conveying or propelling means, and to machines incorporating other like flighting.
Background Art Generally speaking, augers used for the grains or the like industries have a limited life due to the fact that the initial portion of the auger flights in contact with grains such as corn, wheat etc. perform a large percentage of the work which the auger is carrying out in conveying a commodity. This is due to the fact that augers, for example, have an initial loading section for receiving a source of grain from a dump truck , bin or the like, in fact, the inlet or receiving section of the auger is frequently located within a mass of the grain. As such, due to the initial feeding and conveying 2o action of the auger, wear on the outer or leading portions of the auger flight is significant which leads to the premature failure of the outer flight areas.
The problem of premature failure is also partially due to the fact that when an auger flight is formed from a flat band or sheet of metal, the formation of the helix causes the sheet metal to thin out at the outer edge areas of the auger flight. In other words, the thickness of the metal forming the auger flight actually decreases (sometimes to a thickness of 50% or more) from the inner flight sections to the outer portions of the flights. In order to provide an acceptable auger flight, with an outer auger edge having sufficient durability and projected longevity, the thickness of the initial metal used in forming the auger flights is consequently more than that actually required for the internal structure of the auger flights.
When the leading or initial portions of the auger fail, this means that the total auger flighting under today's practices must be discarded and replaced, while the remainder of the auger flighting is still in usable condition.
The art has broadly recognized this problem and has proposed outer edge flight sections which have an increased thickness compared to the inner edge thickness of the flights (or in other words the outer flight areas of the auger are provided with an increased thickness comparable to the original thickness of the metal sheets or bands from the auger flights). An example of such a structure is that shown in US
Patent Zo 1,684,254 where, in Figures 2-4, outer edges of the flight are shown to have a type of reinforcement presumably obtained by cold metal working to provide the increased thickness.
The present invention seeks to overcome the disadvantages of the prior art in providing a less complicated and more effective reinforcement method and apparatus.
Summary of Invention According to a first aspect of this invention, there is provided a reinforced auger 2 o comprising an auger length having an auger body of sheet material with a defined thickness between opposed surfaces of the body and with an outer peripheral edge of the body communicating with an inner edge of the body, said outer peripheral edge having first and second edge portions in which the edge portions are fixedly secured to one another to form a combined thickness which is not less than the thickness of the internal edge section of said auger flight.
According to another aspect of this invention, there is provided a reinforced auger system comprising first and second auger sections; means for operably connecting said first and second sections to form a combined auger length of both said 3 o first and second auger sections, in which one of the first or second auger sections is provided with an auger flight having an outer peripheral edge of the auger having first and second edge portions in which the edge portions are fixedly secured to one another to form a combined thickness not less that the thickness of the internal edge section of said auger flight.
There is provided an auger flighting having outer reinforced areas which permit increased longevity and provide enhanced economical benefits for auger assemblies;
more particularly, according to at least one detachable auger version, there is provided a first and second edge sections preferably having a substantially identical helix and are placed in juxtaposition with each other to form a monolithic structure capable of Zo having a wear factor no less than the wear factor which would be achieved corresponding to a metal thickness substantially corresponding to that of a metal sheet plate from which the auger was formed.
In preferred embodiments, the outer edge of the reinforced auger section has first and second outer edge sections in the form of a helix integral with the primary auger body with one of the first or second edge sections being secured to the other by suitable means such as welding, fastening means or the like.
In various detachable auger versions, the auger adapted to receive the 2 o detachable auger includes a modified shaft and flight.
In preferred forms, the reinforcement preferably comprises a continuous length of reinforcing material corresponding in configuration to the configuration of the outer periphery of the auger flight. However, for special applications, the reinforced auger of the present invention may have lengths of reinforcement spaced from each other so that there is a gap at the outer periphery.
The type of material used for reinforcing the periphery of the outer auger will generally be of a metallic nature, such as cold rolled steel, alloy steel or the like.
3o Again, depending on the application, materials other than steel may be utilized such as non-ferrous alloys, or even in some cases, different types of thermoplastic materials can be employed. By utilizing, according to the present invention, a reinforcement of very hard or wear-resistant material, this also provides the possibility of using a less expensive or thinner material for the main auger flighting since the brunt of the wear factor will be borne by the reinforcement as opposed to the balance of the auger flight.
In various detachable auger versions, the reinforcement includes a continuous length of wear-resistant material extending inwardly from an outer peripheral auger edge to a depth ranging from one/eighth of an inch to about three inches or more, depending on the width of the auger flight. Typically, the width of the reinforcement Zo material will be one-quarter to two inches.
Desirably, the above wear-resistant material will be a metal strip. Most desirably, the wear-resistant material is continuously bonded to the auger flighting, such as by welding in the case of a metal reinforcement and metal auger. However, in cases where there are light-duty uses, depending on the type of reinforcement material and material from which the auger flight is constructed, other bonding techniques may be employed through the use of high tensile durable adhesives, etc.
In various detachable auger versions, the detachable auger includes means for 2o detachably connecting the auger to further auger sections. Typically, the reinforced auger section of the present invention may be mounted on a common auger shaft mounting other auger sections by suitable coupling means. Typical coupling means include fixed joint arrangements, threaded couplings permitting removal of one or more sections of a reinforced auger, etc.
Another aspect of this invention to provide a device for forming a rolled conveyor flighting suitable for use in conveyors, augers and the like material transporting, conveying or propelling means.
3o It is still another aspect of this invention to provide an apparatus for forming rolled conveyor flighting having a reinforced edge.
The art has broadly recognized this problem and has proposed outer edge flight sections which have an increased thickness compared to the inner edge thickness of the flights (or in other words the outer flight areas of the auger are provided with an increased thickness comparable to the original thickness of the metal sheets or bands from the auger flights). An example of such a structure is that shown in US
Patent Zo 1,684,254 where, in Figures 2-4, outer edges of the flight are shown to have a type of reinforcement presumably obtained by cold metal working to provide the increased thickness.
The present invention seeks to overcome the disadvantages of the prior art in providing a less complicated and more effective reinforcement method and apparatus.
Summary of Invention According to a first aspect of this invention, there is provided a reinforced auger 2 o comprising an auger length having an auger body of sheet material with a defined thickness between opposed surfaces of the body and with an outer peripheral edge of the body communicating with an inner edge of the body, said outer peripheral edge having first and second edge portions in which the edge portions are fixedly secured to one another to form a combined thickness which is not less than the thickness of the internal edge section of said auger flight.
According to another aspect of this invention, there is provided a reinforced auger system comprising first and second auger sections; means for operably connecting said first and second sections to form a combined auger length of both said 3 o first and second auger sections, in which one of the first or second auger sections is provided with an auger flight having an outer peripheral edge of the auger having first and second edge portions in which the edge portions are fixedly secured to one another to form a combined thickness not less that the thickness of the internal edge section of said auger flight.
There is provided an auger flighting having outer reinforced areas which permit increased longevity and provide enhanced economical benefits for auger assemblies;
more particularly, according to at least one detachable auger version, there is provided a first and second edge sections preferably having a substantially identical helix and are placed in juxtaposition with each other to form a monolithic structure capable of Zo having a wear factor no less than the wear factor which would be achieved corresponding to a metal thickness substantially corresponding to that of a metal sheet plate from which the auger was formed.
In preferred embodiments, the outer edge of the reinforced auger section has first and second outer edge sections in the form of a helix integral with the primary auger body with one of the first or second edge sections being secured to the other by suitable means such as welding, fastening means or the like.
In various detachable auger versions, the auger adapted to receive the 2 o detachable auger includes a modified shaft and flight.
In preferred forms, the reinforcement preferably comprises a continuous length of reinforcing material corresponding in configuration to the configuration of the outer periphery of the auger flight. However, for special applications, the reinforced auger of the present invention may have lengths of reinforcement spaced from each other so that there is a gap at the outer periphery.
The type of material used for reinforcing the periphery of the outer auger will generally be of a metallic nature, such as cold rolled steel, alloy steel or the like.
3o Again, depending on the application, materials other than steel may be utilized such as non-ferrous alloys, or even in some cases, different types of thermoplastic materials can be employed. By utilizing, according to the present invention, a reinforcement of very hard or wear-resistant material, this also provides the possibility of using a less expensive or thinner material for the main auger flighting since the brunt of the wear factor will be borne by the reinforcement as opposed to the balance of the auger flight.
In various detachable auger versions, the reinforcement includes a continuous length of wear-resistant material extending inwardly from an outer peripheral auger edge to a depth ranging from one/eighth of an inch to about three inches or more, depending on the width of the auger flight. Typically, the width of the reinforcement Zo material will be one-quarter to two inches.
Desirably, the above wear-resistant material will be a metal strip. Most desirably, the wear-resistant material is continuously bonded to the auger flighting, such as by welding in the case of a metal reinforcement and metal auger. However, in cases where there are light-duty uses, depending on the type of reinforcement material and material from which the auger flight is constructed, other bonding techniques may be employed through the use of high tensile durable adhesives, etc.
In various detachable auger versions, the detachable auger includes means for 2o detachably connecting the auger to further auger sections. Typically, the reinforced auger section of the present invention may be mounted on a common auger shaft mounting other auger sections by suitable coupling means. Typical coupling means include fixed joint arrangements, threaded couplings permitting removal of one or more sections of a reinforced auger, etc.
Another aspect of this invention to provide a device for forming a rolled conveyor flighting suitable for use in conveyors, augers and the like material transporting, conveying or propelling means.
3o It is still another aspect of this invention to provide an apparatus for forming rolled conveyor flighting having a reinforced edge.
It is another aspect of this invention to provide a replacement auger flighting with a reinforced wear strip.
It is another aspect of this invention to provide a device for forming rolled conveyor reinforced flighting comprising means for forming a reinforcement coil strip;
means for feeding said coil strip, guide means and drive means; means for maintaining the coil strip in contact with the outer edge of the auger flight; and welding means for securing the soil strip to the auger flight.
to It is another aspect to provide a novel method of forming a reinforced auger flighting comprising the steps of providing a source of a coiling material adapted to be used as a reinforcing strip, feeding a coil strip into a juxtaposition arrangement with an auger segment, including the steps of feeding a coil strip through a pair of guide rollers, coiling said strip through bending roller means, advancing said coil reinforcement strip through a holding means, rotating said flighting in conjunction with the speed of a rotating auger and creating a weld between the reinforcement strip and an auger flight edge.
Desirably, the above method includes feeding the reinforcement strip into 2o juxtaposition with the said outer leading edge by advancing the strip through a coiling step whereby the reinforcement strip is fed in a coiled configuration.
According to any of the above methods, the step of advancing the reinforcement strip and the auger length is carried out by feeding the reinforcement strip while in 2 5 juxtaposition with the outer leading edge of the auger segment to thereby advance both the auger segment and the reinforcement strip simultaneously.
In any of the above methods, the step of securing the reinforcement strip to the outer auger flight edge is carried out by welding the strip and segment in a welding 30 operation.
It is another aspect of this invention to provide a device for forming rolled conveyor reinforced flighting comprising means for forming a reinforcement coil strip;
means for feeding said coil strip, guide means and drive means; means for maintaining the coil strip in contact with the outer edge of the auger flight; and welding means for securing the soil strip to the auger flight.
to It is another aspect to provide a novel method of forming a reinforced auger flighting comprising the steps of providing a source of a coiling material adapted to be used as a reinforcing strip, feeding a coil strip into a juxtaposition arrangement with an auger segment, including the steps of feeding a coil strip through a pair of guide rollers, coiling said strip through bending roller means, advancing said coil reinforcement strip through a holding means, rotating said flighting in conjunction with the speed of a rotating auger and creating a weld between the reinforcement strip and an auger flight edge.
Desirably, the above method includes feeding the reinforcement strip into 2o juxtaposition with the said outer leading edge by advancing the strip through a coiling step whereby the reinforcement strip is fed in a coiled configuration.
According to any of the above methods, the step of advancing the reinforcement strip and the auger length is carried out by feeding the reinforcement strip while in 2 5 juxtaposition with the outer leading edge of the auger segment to thereby advance both the auger segment and the reinforcement strip simultaneously.
In any of the above methods, the step of securing the reinforcement strip to the outer auger flight edge is carried out by welding the strip and segment in a welding 30 operation.
In any of the above methods, the welding operation is preferably a continuous welding step to provide a continuous bond between the outer leading edge of the auger segment and the reinforcement strip. Desirably, the reinforcement strip is a metal strip.
In any of the above methods, the step of providing an auger segment includes feeding individual auger segments in a spaced-apart manner.
A still further aspect of this invention is to provide a novel detachable reinforced auger flight, comprising a detachable auger portion with reinforced flighting, and connecting means for connecting the detachable reinforced flight with another auger.
The reinforced auger of the present invention has numerous advantages over existing augers including the fact that worn out auger sections can be replaced; the method and apparatus of the present invention are easy to carry out and are an economical technique of forming reinforced augers.
Brief Description of the Drawings Figure 1 illustrates a side elevational view of the present invention.
Figure 2 shows a wear strip as it is being formed without the auger flighting in place.
Figure 3 shows an enlarged view of the present invention.
Figure 4 shows a side view of the device with a wear strip being secured to the flighting.
Figure 5 shows an auger flighting before the wear strip is secured.
Figure 6 is an enlarged view of a flighting before the wear strip is secured.
In any of the above methods, the step of providing an auger segment includes feeding individual auger segments in a spaced-apart manner.
A still further aspect of this invention is to provide a novel detachable reinforced auger flight, comprising a detachable auger portion with reinforced flighting, and connecting means for connecting the detachable reinforced flight with another auger.
The reinforced auger of the present invention has numerous advantages over existing augers including the fact that worn out auger sections can be replaced; the method and apparatus of the present invention are easy to carry out and are an economical technique of forming reinforced augers.
Brief Description of the Drawings Figure 1 illustrates a side elevational view of the present invention.
Figure 2 shows a wear strip as it is being formed without the auger flighting in place.
Figure 3 shows an enlarged view of the present invention.
Figure 4 shows a side view of the device with a wear strip being secured to the flighting.
Figure 5 shows an auger flighting before the wear strip is secured.
Figure 6 is an enlarged view of a flighting before the wear strip is secured.
Figure 7 is an enlarged view of an auger flighting having a wear strip applied to the flighting surface.
Figure 8 shows a detachable reinforced auger flighting being applied to a modified auger shaft and flighting.
Detailed Description of the Preferred Embodiments In a preferred embodiment, the apparatus 10 comprises structural support to members 20, to which are mounted trough means 80 for feeding an auger flighting 100 to the apparatus, strip supply means (not shown) consisting of a reinforcing metal wear strip 50, means for forming a reinforcement strip into a spiral helical configuration, and advancing the wear strip into contact with the outer edge of an auger flighting, in which the feeding means includes guide means for guiding a non-formed strip material, drive i5 means in the form of rotating drive rollers which contact the wear strip and advance the strip into a coiled condition to the outer edge of the auger flight, and maintaining the wear strip in contact with the outer edge of the auger flight and means for effecting a weld while the reinforcement strip is in contact with the auger flight, trough means for receiving an auger with reinforced flighting from the apparatus once completed.
More specifically, as shown in Figure 1, the device 10 includes trough means mounted on one end or loading side which is adapted to support a length of auger flighting 100 while the auger flighting is being positioned into the device.
The loading trough or feeder trough 80 is preferably inclined to allow a length of auger flighting 100 to be drawn into the device, and a second trough 90 is mounted to an exiting or unloading side on the opposite end of the device and is adapted to receive the reinforced auger flighting.
The means for feeding a wear strip and advancing it into contact with the outer 3 o edge of the auger flighting includes guide means 230 or guide rollers for guiding a non-formed strip material. As the auger flighting 100 is being drawn into the device, a _8_ quantity of metal strip 50 or the like is drawn from a supply of the strip (not shown to an entry point proximate the wear strip guide rollers. The wear strip is positioned and is drawn through the pair of guide rollers by a pair of powered rollers 240 and 242.
Drive rollers 240 and 242 are powered by any conventional method or machinery, for example the rollers may be connected with a drive means 200 consisting of sprockets 204 and a roller chain 202, whereby the rollers 240 and 242 are power driven with a variable drive. The powered rollers 240 and 242 are preferably the main drive source for the device, and are adapted to drive both the auger flighting 100 and io wear strip 50 through the device in a counter-clockwise direction of rotation.
The means for forming a reinforcing wear strip into a spiral includes guide rollers includes; an idler guide roller 250 which may or may not be powered, a lower idler guide roller 270 and a pair of powered rollers 240 and 242. As the wear strip 50 is drawn through the wear strip guide rollers 230, the rollers position and guide the wear strip material to a position whereby it is in communication with the pair of powered rollers 240 and 242 and an idler roller 250. The idler roller 250 is positioned between the two powered rollers 240 and 242, with the lower idler roller 270 proximate roller 242. This allows the wear strip 50 to maintain a controlled contact with a bending roller or lower idler guide roller 270. Idler roller 250 and lower idler guide roller 270 are adapted to bend or otherwise deflect wear strip 50 to uniformly match the outside diameter of an auger flighting 100. In addition, the lower guide roller 270 helps support both the flighting 100 and wear strip 50 as they rotate.
As both auger flighting 100 and wear strip 50 rotate in a counter clockwise direction, wear strip 50 as shown in Figures 2 and 3 is formed into a spiral matching the outside diameter of the flighting. The wear strip 50 is formed into a helix as it contacts the lower idler roller 270 and roller 250, which is in contact with the outer periphery of the flighting.
The wear strip 50 and the auger flighting 100 are aligned as they contact each other proximate the second of the pair of powered rollers 242. This allows for a simultaneously rotation and precise welding of the two pieces together.
As shown in Figures 3 and 4, a wear strip 50 is being fed into the device where an auger flighting comprising a continuous or spiral blade of any conventional material, such as steel, is fed into the device from the loading trough 80. The leading portion of the auger flighting 100 contacts at least a portion of the leading edge of the strip material 50 along the inside surface of the flighting proximate the outer edge.
Proximate the second of the pair of powered rollers 242, the flighting and the leading edge of the strip connect, where the powered rollers 240 and 242 drive both the flighting and the strip that allow for a controlled rotation of both pieces at the same speed. The auger flighting 100 is in contact with the wear strip 50 along the periphery of the inside surface with the powered rollers.
As the leading edge of the flighting 100 and the wear strip 50 rotate, the upper guide roller 260 and the welder holder 280 adapted to hold the welder head 285 are directed into an operative position. Preferably, this is done through pneumatic or other like means.
The upper guide roller 260 is adapted to hold or maintain the flighting in a generally vertical position. This roller is adjustable in height to allow different sized auger flighting to pass through the present invention. A moveable support arm having at its free end the upper guide roller 260 is adapted to move upper guide roller 260 into operative position as shown in Figure 4 A moveable support arm 282 having at its free end the welder holder 280 or the like comprises a welder head 285 of any conventional means, and is adapted to be s 0 located in an operative position. The welder holder is preferably positioned through a pneumatic means. As shown in Figure 4, the welder head 285 and upper guide roller 260 are in an operative position, the welder head 285 proximate the inside edge of the wear strip 50 which is positioned near the outer periphery of the inside surface 102 of flighting 100.
The wear strip 50 and flighting 100 rotate in conjunction with each other and rotate into a position whereby a welder head or the like is able to move into an active position to be in constant communication with the inner edge of the wear strip and the flighting in order to weld the wear strip to the flighting blade. This allows for the welder head 285 to accurately and uniformly weld the two pieces together to provide a io reinforced material propelling edge. The welder head 285 is positioned proximate the inner edge of the wear strip 50 facing the inward edge or centre of the flighting. The welding process secures the reinforcing wear strip onto the surface of the flighting.
As the reinforced auger flighting 110 rotates, the flighting continues along i5 through the opposite end along a exit or unloading trough 90, where if desired the flighting 110 is allowed to cool and, when an adequate or predetermined length of auger flighting has been modified, is then removed: As shown in Figures 5 through 7, there is provided a pre-existing auger flight in Figure 5. Figure 6 illustrates an enlarged view of the auger flighting of Figure 5 before the addition of the wear strip.
A wear strip 2 o is added to the outer peripheral edge of the inner surface as shown in Figure 7.
Mounted within the housing or main structure of the device 10 are a plurality of rollers, including wear strip guide rollers, powered rollers, upper and lower idler rollers and a welding means consisting of a welder head holder and a welder head. The 25 powered rollers and the positioning means are regulated by a control panel 38 or other like apparatus, allowing for operational control.
In an alternative embodiment, the above described process is used in combination with metal wear strip 50 and auger flighting 100, and is adapted to impart s o the same reinforcing edge to form a detachable replacement auger flighting 300. This reinforced portion is adapted to be used as a replacement component for an auger that has been worn down or damaged at the operational end.
The auger or flighting is placed into the device through the feeding trough and enter into the device, pulled through via the powered rollers and has the metal wear strip affixed to the peripheral edge of the flighting.
The auger as contemplated in this alternative embodiment includes two sections as shown in Figure 8; a detachable auger portion which is removably mounted on an io auger shaft or tubing and the remaining portion or section of a reinforced or non-reinforced auger flighting 320. According to this embodiment, the detachable section consists of a removable shaft or tubing 310, reinforced auger flighting 110 and connecting means 315 adapted to connect the reinforced section to an auger adapted to receive the replacement auger 300. On at least one end of the tubing 310, the i5 connecting means 315 is preferably a rolled depression, which in use is adapted to reduce the inside diameter to allow for a tighter fit on auger shaft 320.
The replacement auger flighting 300 preferably consists of a reinforced detachable auger portion generally between 1 and 2 meters in length, although other 20 lengths are to be anticipated if shorter or longer lengths are desired. The flighting 110 is then affixed through any conventional means such as welding to a separate section of tubing or the like to form an adaptor to be secured to a shaft.
An existing auger to which the detachable auger flighting is to be affixed to is of 25 any conventional auger flighting, which consists of a conventional shaft and an auger flighting. This flighting may also include a wear strip affixed to the peripheral edge of the flighting of the type contemplated by the present invention. The shaft or tubing 310 of the replacement auger is able to mount to the existing auger flighting, whereby the auger flighting is adapted to correctly parallel the existing flighting.
The connecting means may be of any conventional means, yet preferably includes a tube or the like adapted to slide onto the existing shaft of the auger to be replaced, and locking means. In use, the replacement auger tube or shaft 310 is adapted to slide over the auger shaft 320 of an existing auger, and is positioned so that the flighting of the replacement auger connects with the lower or tail end 330 of the flighting 325 of the existing auger 320. Locking means is provided to secure both sections to each other, and for example may include a set screw 305 and set screw receiving means 307 or the like adapted to secure the sliding shaft onto the existing shaft.
io In use, reinforced auger flighting and shaft are adapted to slide or be placed over an existing auger shaft 320, is then secured via a locking means such as a set screw to the shaft. The replacement detachable auger flighting 300 may be used until the replacement auger flighting is worn or damaged, at which point it is able to be removed and replaced with another replacement flighting of the type contemplated by the present invention.
In another alternative embodiment, the apparatus includes a cover or top 40 mounted to the apparatus. This top or cover 40, when in an open position, is adapted 2 o to allow access to the inner portion. When in a closed position, as shown in Figure 1, the cover is adapted to shield the operator or others from the welding glare and or particles discharged from the device. The cover 40 may include a view port 42 or the like to allow an operator of the device to observe the reinforcing process if desired.
In a still further alternative embodiment, as shown in Figure 1, there is included adjustment means, e.g., an adjustment wheel 46, which is provided to allow the apparatus to accommodate various diameters of auger flighting. This allows the apparatus of the present invention to attach a wear strip to different outside diameters of various sizes of auger flightings. The adjustment means or wheel 46 moves the s o combination of rollers 240,242 and 250 in relation to the roller 270 to allow for varying outside diameters of the auger flighting. For example, a reinforcement strip may be added to flighting varying in diameter from 6 to 13 inches, and therefore adjustment is necessary to allow for a wear strip to be added to the various flightings.
In a still further embodiment, roller 250 may be powered by any conventional means, preferably from the main drive system through any conventional method.
In this embodiment, the further application of an additional powered roller would increase the traction on the wear strip 50.
It will be understood that this apparatus, method and product may be applied to Zo existing pre-fabricated augers with or without attached flighting. The use of the terms auger or auger flighting as contemplated by this application will be understood to include flighting that is or is not attached to an auger or auger shaft per se.
It will be seen that although the present invention has been described herein by way of a preferred embodiment thereof, numerous departures from and variations to the described embodiment may be made without departing from the spirit and scope of the present invention as set forth in the claims.
Figure 8 shows a detachable reinforced auger flighting being applied to a modified auger shaft and flighting.
Detailed Description of the Preferred Embodiments In a preferred embodiment, the apparatus 10 comprises structural support to members 20, to which are mounted trough means 80 for feeding an auger flighting 100 to the apparatus, strip supply means (not shown) consisting of a reinforcing metal wear strip 50, means for forming a reinforcement strip into a spiral helical configuration, and advancing the wear strip into contact with the outer edge of an auger flighting, in which the feeding means includes guide means for guiding a non-formed strip material, drive i5 means in the form of rotating drive rollers which contact the wear strip and advance the strip into a coiled condition to the outer edge of the auger flight, and maintaining the wear strip in contact with the outer edge of the auger flight and means for effecting a weld while the reinforcement strip is in contact with the auger flight, trough means for receiving an auger with reinforced flighting from the apparatus once completed.
More specifically, as shown in Figure 1, the device 10 includes trough means mounted on one end or loading side which is adapted to support a length of auger flighting 100 while the auger flighting is being positioned into the device.
The loading trough or feeder trough 80 is preferably inclined to allow a length of auger flighting 100 to be drawn into the device, and a second trough 90 is mounted to an exiting or unloading side on the opposite end of the device and is adapted to receive the reinforced auger flighting.
The means for feeding a wear strip and advancing it into contact with the outer 3 o edge of the auger flighting includes guide means 230 or guide rollers for guiding a non-formed strip material. As the auger flighting 100 is being drawn into the device, a _8_ quantity of metal strip 50 or the like is drawn from a supply of the strip (not shown to an entry point proximate the wear strip guide rollers. The wear strip is positioned and is drawn through the pair of guide rollers by a pair of powered rollers 240 and 242.
Drive rollers 240 and 242 are powered by any conventional method or machinery, for example the rollers may be connected with a drive means 200 consisting of sprockets 204 and a roller chain 202, whereby the rollers 240 and 242 are power driven with a variable drive. The powered rollers 240 and 242 are preferably the main drive source for the device, and are adapted to drive both the auger flighting 100 and io wear strip 50 through the device in a counter-clockwise direction of rotation.
The means for forming a reinforcing wear strip into a spiral includes guide rollers includes; an idler guide roller 250 which may or may not be powered, a lower idler guide roller 270 and a pair of powered rollers 240 and 242. As the wear strip 50 is drawn through the wear strip guide rollers 230, the rollers position and guide the wear strip material to a position whereby it is in communication with the pair of powered rollers 240 and 242 and an idler roller 250. The idler roller 250 is positioned between the two powered rollers 240 and 242, with the lower idler roller 270 proximate roller 242. This allows the wear strip 50 to maintain a controlled contact with a bending roller or lower idler guide roller 270. Idler roller 250 and lower idler guide roller 270 are adapted to bend or otherwise deflect wear strip 50 to uniformly match the outside diameter of an auger flighting 100. In addition, the lower guide roller 270 helps support both the flighting 100 and wear strip 50 as they rotate.
As both auger flighting 100 and wear strip 50 rotate in a counter clockwise direction, wear strip 50 as shown in Figures 2 and 3 is formed into a spiral matching the outside diameter of the flighting. The wear strip 50 is formed into a helix as it contacts the lower idler roller 270 and roller 250, which is in contact with the outer periphery of the flighting.
The wear strip 50 and the auger flighting 100 are aligned as they contact each other proximate the second of the pair of powered rollers 242. This allows for a simultaneously rotation and precise welding of the two pieces together.
As shown in Figures 3 and 4, a wear strip 50 is being fed into the device where an auger flighting comprising a continuous or spiral blade of any conventional material, such as steel, is fed into the device from the loading trough 80. The leading portion of the auger flighting 100 contacts at least a portion of the leading edge of the strip material 50 along the inside surface of the flighting proximate the outer edge.
Proximate the second of the pair of powered rollers 242, the flighting and the leading edge of the strip connect, where the powered rollers 240 and 242 drive both the flighting and the strip that allow for a controlled rotation of both pieces at the same speed. The auger flighting 100 is in contact with the wear strip 50 along the periphery of the inside surface with the powered rollers.
As the leading edge of the flighting 100 and the wear strip 50 rotate, the upper guide roller 260 and the welder holder 280 adapted to hold the welder head 285 are directed into an operative position. Preferably, this is done through pneumatic or other like means.
The upper guide roller 260 is adapted to hold or maintain the flighting in a generally vertical position. This roller is adjustable in height to allow different sized auger flighting to pass through the present invention. A moveable support arm having at its free end the upper guide roller 260 is adapted to move upper guide roller 260 into operative position as shown in Figure 4 A moveable support arm 282 having at its free end the welder holder 280 or the like comprises a welder head 285 of any conventional means, and is adapted to be s 0 located in an operative position. The welder holder is preferably positioned through a pneumatic means. As shown in Figure 4, the welder head 285 and upper guide roller 260 are in an operative position, the welder head 285 proximate the inside edge of the wear strip 50 which is positioned near the outer periphery of the inside surface 102 of flighting 100.
The wear strip 50 and flighting 100 rotate in conjunction with each other and rotate into a position whereby a welder head or the like is able to move into an active position to be in constant communication with the inner edge of the wear strip and the flighting in order to weld the wear strip to the flighting blade. This allows for the welder head 285 to accurately and uniformly weld the two pieces together to provide a io reinforced material propelling edge. The welder head 285 is positioned proximate the inner edge of the wear strip 50 facing the inward edge or centre of the flighting. The welding process secures the reinforcing wear strip onto the surface of the flighting.
As the reinforced auger flighting 110 rotates, the flighting continues along i5 through the opposite end along a exit or unloading trough 90, where if desired the flighting 110 is allowed to cool and, when an adequate or predetermined length of auger flighting has been modified, is then removed: As shown in Figures 5 through 7, there is provided a pre-existing auger flight in Figure 5. Figure 6 illustrates an enlarged view of the auger flighting of Figure 5 before the addition of the wear strip.
A wear strip 2 o is added to the outer peripheral edge of the inner surface as shown in Figure 7.
Mounted within the housing or main structure of the device 10 are a plurality of rollers, including wear strip guide rollers, powered rollers, upper and lower idler rollers and a welding means consisting of a welder head holder and a welder head. The 25 powered rollers and the positioning means are regulated by a control panel 38 or other like apparatus, allowing for operational control.
In an alternative embodiment, the above described process is used in combination with metal wear strip 50 and auger flighting 100, and is adapted to impart s o the same reinforcing edge to form a detachable replacement auger flighting 300. This reinforced portion is adapted to be used as a replacement component for an auger that has been worn down or damaged at the operational end.
The auger or flighting is placed into the device through the feeding trough and enter into the device, pulled through via the powered rollers and has the metal wear strip affixed to the peripheral edge of the flighting.
The auger as contemplated in this alternative embodiment includes two sections as shown in Figure 8; a detachable auger portion which is removably mounted on an io auger shaft or tubing and the remaining portion or section of a reinforced or non-reinforced auger flighting 320. According to this embodiment, the detachable section consists of a removable shaft or tubing 310, reinforced auger flighting 110 and connecting means 315 adapted to connect the reinforced section to an auger adapted to receive the replacement auger 300. On at least one end of the tubing 310, the i5 connecting means 315 is preferably a rolled depression, which in use is adapted to reduce the inside diameter to allow for a tighter fit on auger shaft 320.
The replacement auger flighting 300 preferably consists of a reinforced detachable auger portion generally between 1 and 2 meters in length, although other 20 lengths are to be anticipated if shorter or longer lengths are desired. The flighting 110 is then affixed through any conventional means such as welding to a separate section of tubing or the like to form an adaptor to be secured to a shaft.
An existing auger to which the detachable auger flighting is to be affixed to is of 25 any conventional auger flighting, which consists of a conventional shaft and an auger flighting. This flighting may also include a wear strip affixed to the peripheral edge of the flighting of the type contemplated by the present invention. The shaft or tubing 310 of the replacement auger is able to mount to the existing auger flighting, whereby the auger flighting is adapted to correctly parallel the existing flighting.
The connecting means may be of any conventional means, yet preferably includes a tube or the like adapted to slide onto the existing shaft of the auger to be replaced, and locking means. In use, the replacement auger tube or shaft 310 is adapted to slide over the auger shaft 320 of an existing auger, and is positioned so that the flighting of the replacement auger connects with the lower or tail end 330 of the flighting 325 of the existing auger 320. Locking means is provided to secure both sections to each other, and for example may include a set screw 305 and set screw receiving means 307 or the like adapted to secure the sliding shaft onto the existing shaft.
io In use, reinforced auger flighting and shaft are adapted to slide or be placed over an existing auger shaft 320, is then secured via a locking means such as a set screw to the shaft. The replacement detachable auger flighting 300 may be used until the replacement auger flighting is worn or damaged, at which point it is able to be removed and replaced with another replacement flighting of the type contemplated by the present invention.
In another alternative embodiment, the apparatus includes a cover or top 40 mounted to the apparatus. This top or cover 40, when in an open position, is adapted 2 o to allow access to the inner portion. When in a closed position, as shown in Figure 1, the cover is adapted to shield the operator or others from the welding glare and or particles discharged from the device. The cover 40 may include a view port 42 or the like to allow an operator of the device to observe the reinforcing process if desired.
In a still further alternative embodiment, as shown in Figure 1, there is included adjustment means, e.g., an adjustment wheel 46, which is provided to allow the apparatus to accommodate various diameters of auger flighting. This allows the apparatus of the present invention to attach a wear strip to different outside diameters of various sizes of auger flightings. The adjustment means or wheel 46 moves the s o combination of rollers 240,242 and 250 in relation to the roller 270 to allow for varying outside diameters of the auger flighting. For example, a reinforcement strip may be added to flighting varying in diameter from 6 to 13 inches, and therefore adjustment is necessary to allow for a wear strip to be added to the various flightings.
In a still further embodiment, roller 250 may be powered by any conventional means, preferably from the main drive system through any conventional method.
In this embodiment, the further application of an additional powered roller would increase the traction on the wear strip 50.
It will be understood that this apparatus, method and product may be applied to Zo existing pre-fabricated augers with or without attached flighting. The use of the terms auger or auger flighting as contemplated by this application will be understood to include flighting that is or is not attached to an auger or auger shaft per se.
It will be seen that although the present invention has been described herein by way of a preferred embodiment thereof, numerous departures from and variations to the described embodiment may be made without departing from the spirit and scope of the present invention as set forth in the claims.
Claims (28)
1. An apparatus for forming reinforced flight suitable for use in conveyors, augers and the like in material transporting, conveying or propelling systems, comprising:
means for forming a coil reinforcement or wear strip;
means for feeding and advancing said coil strip, said feeding means including guide means and drive means;
means for placing said strip into juxtaposition with an outer leading edge of an auger flight;
means for maintaining said coil strip in contact with the outer edge of the auger flight; and means for securing said coil strip to said outer leading edge of said auger flight.
means for forming a coil reinforcement or wear strip;
means for feeding and advancing said coil strip, said feeding means including guide means and drive means;
means for placing said strip into juxtaposition with an outer leading edge of an auger flight;
means for maintaining said coil strip in contact with the outer edge of the auger flight; and means for securing said coil strip to said outer leading edge of said auger flight.
2. An apparatus according to claim 1, wherein said means for securing said reinforcement strip to said auger flight includes welding means.
3. An apparatus according to claim 1, wherein said means for securing said reinforcement strip includes fastening means.
4. Apparatus according to claim 3, wherein said fastening means includes riveting means.
5. An apparatus for forming detachable auger flight suitable for use in conveyors, augers and the like in material transporting, conveying or propelling systems, comprising:
means for providing a length of auger flight;
means for forming a reinforcement coil strip;
means for feeding and advancing said coil strip, said feeding means including guide means and drive means;
means for placing said strip into juxtaposition with an outer leading edge of an auger flight;
means for maintaining said strip in contact with the outer edge of the auger flight;
and means for securing said reinforcement strip to said auger flight.
means for providing a length of auger flight;
means for forming a reinforcement coil strip;
means for feeding and advancing said coil strip, said feeding means including guide means and drive means;
means for placing said strip into juxtaposition with an outer leading edge of an auger flight;
means for maintaining said strip in contact with the outer edge of the auger flight;
and means for securing said reinforcement strip to said auger flight.
6. An apparatus according to claim 1, wherein said means for forming a coil strip includes a pair of guide rollers, powered rollers and an idler guide roller.
7. An apparatus according to claim 1, wherein said drive means is adapted to maintain said reinforcement or wear strip in contact with the outer edge of said auger flight.
8. A detachable reinforced auger comprising an auger shaft having at least two auger sections, at least one of which is a detachable auger removably mounted on said auger shaft, and wherein at least one of said sections has a reinforced auger flight.
9. A reinforced auger, as defined in claim 8, comprising first and second auger sections; means for operatively connecting said first and second sections to form a combined auger length of both said first and second auger sections, in which one of the first or second auger sections is provided with an auger flight having an outer peripheral edge of the auger having first and second edge portions in which the edge portions are fixedly secured to one another to form a combined thickness not less that the thickness of the internal edge section of said auger flight.
10. A reinforced auger comprising an auger length having an auger body of sheet material with a defined thickness between opposed surfaces of the body and with an outer peripheral edge of the body communicating with an inner edge of the body, said outer peripheral edge having first and second edge portions in which the edge portions are fixedly secured to one another to form a combined thickness which is not less than the thickness of the internal edge section of said auger flight.
11. A reinforced auger according to claim 8, wherein said first and second edge sections have a substantially identical helix and are in juxtaposition with each other to form a monolithic structure capable of having a wear factor no less than the wear factor which would be achieved corresponding to a metal thickness substantially corresponding to that of a metal sheet plate from which said auger was formed.
12. A detachable auger according to claim 8 wherein said detachable first section comprises of a removable shaft or tubing, reinforced auger flight and connecting means.
13. A detachable auger according to claim 10, wherein said connecting means comprises at least one end of said tubing having a rolled depression.
14. A detachable auger according to claim 10, wherein said connecting means is adapted to connect said reinforced first section to said second section of auger.
15. A detachable auger according to claim 11, wherein said second section of auger includes a modified shaft and flight.
16. A detachable auger according to claim 8, wherein said detachable auger portion has a continuous reinforcement extending along the length thereof.
17. A detachable auger according to claim 14, wherein said reinforcement comprises a continuous length of wear-resistant material extending inwardly from an outer peripheral auger edge to a depth ranging from one/eighth of an inch to about three inches.
18. A detachable auger according to claim 8, wherein said detachable auger includes means for detachably connecting said auger to a further auger section.
19. A detachable auger according to claim 15, wherein said wear-resistant material comprises a metal strip.
20. A detachable auger according to claim 17, wherein said metal wear resistant strip is selected from the group including cold rolled steel and alloy steel.
21. A detachable auger according to claim 15, wherein said wear-resistant material is continuously bonded to said auger.
22. A method of forming a reinforced auger flight comprising the steps of:
providing an auger segment;
providing a source of continuous coil material adapted for use as a reinforcement strip;
feeding said reinforcing strip into juxtaposition with an outer leading edge of said auger segment;
advancing said reinforcing strip and said auger length in time related sequence;
and securing said reinforcement strip to said outer auger flight edge to form a reinforced auger segment.
providing an auger segment;
providing a source of continuous coil material adapted for use as a reinforcement strip;
feeding said reinforcing strip into juxtaposition with an outer leading edge of said auger segment;
advancing said reinforcing strip and said auger length in time related sequence;
and securing said reinforcement strip to said outer auger flight edge to form a reinforced auger segment.
23. A method of forming a reinforced auger flight as defined in claim 22, wherein said reinforcement strip is fed into juxtaposition with said outer leading edge by advancing said strip through a coiling step whereby said reinforcement strip is fed in a coiled configuration.
24. A method of forming a reinforced auger flight as defined in claim 22, wherein said step of advancing said reinforcement strip and said auger length is carried out by feeding said reinforcement strip while in juxtaposition with the outer leading edge of said auger segment to thereby advance both said auger segment and said reinforcement strip simultaneously.
25. A method of forming a reinforced auger flight as defined in claim 22, wherein said step of securing said reinforcement strip to said outer auger flight edge is carried out by welding said strip and segment in a welding operation.
26. A method of forming a reinforced auger flight as defined in claim 22, wherein said welding operation is a continuous welding step to provide a continuous bond between said outer leading edge of said auger segment and said reinforcement strip.
27. A method of forming a reinforced auger flight as defined in claim 22, wherein said step of providing an auger segment comprises feeding individual auger segments in a spaced-apart manner.
28. A method of forming a reinforced auger flight as defined in claim 22, wherein the reinforcement strip is a metal strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002252127A CA2252127A1 (en) | 1998-10-30 | 1998-10-30 | Method and apparatus for forming reinforced auger flighting and a detachable reinforced auger flight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002252127A CA2252127A1 (en) | 1998-10-30 | 1998-10-30 | Method and apparatus for forming reinforced auger flighting and a detachable reinforced auger flight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2252127A1 true CA2252127A1 (en) | 2000-04-30 |
Family
ID=29425547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002252127A Abandoned CA2252127A1 (en) | 1998-10-30 | 1998-10-30 | Method and apparatus for forming reinforced auger flighting and a detachable reinforced auger flight |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2252127A1 (en) |
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| FR2878770A1 (en) * | 2004-12-07 | 2006-06-09 | Peugeot Citroen Automobiles Sa | Helical spring fabricating method for steering wheel assembly of motor vehicle, involves assembling flat elementary ring washers by welding at level of their junction lines, and mechanically finishing assembled washers |
| WO2007065980A1 (en) * | 2005-12-08 | 2007-06-14 | Peugeot Citroen Automobiles Sa | Method for producing a spring with flat turns |
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| CN103537904A (en) * | 2013-10-18 | 2014-01-29 | 王协岭 | Automatic circling welding machine of spiral piles |
| CN103537904B (en) * | 2013-10-18 | 2016-03-16 | 王协岭 | A kind of spiral ground pile spirals bonding machine automatically |
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| US10773287B2 (en) | 2015-03-10 | 2020-09-15 | Technical Systems (Pty) Ltd | Coreless auger manufacture |
| CN106514080A (en) * | 2016-12-15 | 2017-03-22 | 鹤山市运通新能源科技有限公司 | Spiral reinforcing rib girth welding facility |
| CN107364693A (en) * | 2017-09-01 | 2017-11-21 | 合肥今越制药有限公司 | A kind of closed medicinal powder conveyer of Shuerjing piece industrial water cold mould |
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| CN112276400A (en) * | 2020-11-02 | 2021-01-29 | 岳西十行机械设备有限公司 | Clamping fixture for automatic welding of helical blades |
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| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued | ||
| FZDE | Discontinued |
Effective date: 20031030 |