EP1152091A2 - Laderschwinge - Google Patents
Laderschwinge Download PDFInfo
- Publication number
- EP1152091A2 EP1152091A2 EP01110548A EP01110548A EP1152091A2 EP 1152091 A2 EP1152091 A2 EP 1152091A2 EP 01110548 A EP01110548 A EP 01110548A EP 01110548 A EP01110548 A EP 01110548A EP 1152091 A2 EP1152091 A2 EP 1152091A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- support tube
- web
- loader arm
- loader
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/34—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49616—Structural member making
- Y10T29/49623—Static structure, e.g., a building component
- Y10T29/49625—Openwork, e.g., a truss, joist, frame, lattice-type or box beam
Definitions
- the invention relates to a loader arm, in particular for a front loader, with a support tube as well as a method to its manufacture.
- Loaders are e.g. B. attached to agricultural tractors and are vertically movable to lift loads.
- the loader contains a loader arm, on the other cantilevered end a tool is attached while the other end is articulated to the tractor. Because of the length of the loader arm and the attacking Forces occur in the loader arm with considerable bending moments.
- Various measures have been taken for known loader arms seized to a basically square tube-like support tube to make it more rigid. For example, it is suggested two U-profiles (TRIMA Professional, BAAS TRIMA front loader with PowerLink) or two square profiles that are approximately 75% closed (Faucheux) to nest and close together weld. Another one with "Quicke" front loaders applied procedures are partial on one broadside open square hollow sections placed together and with each other welded to form a closed rigid tube.
- the bending strength specified by the dimensioning of the web of the web is not determined by the cross-sectional dimensions of the support tube limited if the web over the outer surface of the support tube survives. In such a case, the supernatants In the area of the web or openings or the like be attached to which components can be connected. In addition, the web can be manufactured using a tool are kept in the correct welding position.
- a smooth surface of the support tube is created in that the web closes with its outer surface.
- the support tube basically every cross section could have, it is for handling in manufacturing and the guidance of the forces is advantageous when the support tube is out a tube is formed with a square profile. It can the support tube runs both cylindrically and conically be trained. The introduction of the recess in the Narrow side of the square tube causes the web in the Direction of the top web of the support tube extends where the largest Bending moments occur.
- Conical walls or high ridges of the support tube make it possible to add the load bearing capacity to the adjust expected or wanted force diagram. To this Way, an even load distribution and one optimized use of materials achieved.
- the inventive method for producing the inventive loader arm makes it possible to carry tubes various dimensions and especially with conical Establish course.
- FIG 1 is a loader 10 with a loader arm 12, one Console 14, hydraulic motors 16 and a tool 18 shown the one to an unspecified and only by means of one Rades 20 indicated tractor is attached.
- the loader 10 is designed in the manner of a front loader that especially in agriculture or in the municipal area is used and lifts loads of more than 1000 kg.
- the loader arm 12 extends between the console 14 and the tool 18 and has a kink of almost 90 degrees. Due to the attacking forces, the loader arm is out formed a support tube 22, which is in the preferred Embodiment each to the kink in the Drawing level expanded conically.
- the console 14 is used to connect the loader arm 12 to the Agricultural tractor and takes the loader arm 12 vertically swiveling up.
- the hydraulic motors 16 serve the vertical movement of the Loader arm 12 and are supported at one end on console 14 and at the other end on the loader arm 12 in its kink area each vertically swiveling.
- the hydraulic motors 16 are in a known manner from a hydraulic system on the Farm tractor controlled. Between the loader arm 12 and the Tool 18 are other hydraulic motors in a known manner provided, but will not be discussed in more detail.
- the tool 18 is shown as a shovel with which, for. B. sand or the like can be added.
- the wheel 20 is only representative of the Agricultural tractor and is a front steerable wheel. Another indicated curve stands for a fender.
- the support tube 22 is detailed in section in Figure 2 shown and contains two trained as high ridges Walls 24, formed as transverse webs narrow sides 26, one Recess 28 and an inserted web 30th
- the support tube 22 is a tapered square tube formed from an approx. 6 - 10 mm thick steel sheet is formed.
- the steel sheet is processed according to a Support tube 22 punched, cut, or otherwise shaped and then 90 degrees accordingly edged in the same direction. The edging is done in such a way that finally the recess 28 remains. While in that four bending edges are provided, could also be a round, five, six or other tube profile be provided.
- the position shown in Figure 2 corresponds the actual installation position.
- the walls 24 run parallel to one another and extend itself in the vertical direction.
- the narrow sides 26 also run parallel to one another and perpendicular to the walls 24. While the upper narrow side 26 connects the two walls 24 together, the two end lower narrow sides 26, also called an interrupted Narrow side 26 could be designated, each on the Recess 28.
- the width of the recess 28 corresponds essentially to that Width of the bridge 30. If a game fit is selected, the Web 30 easily inserted into the recess 28 and by means of of a tool are held until it touches the narrow sides 26 is welded on. Alternatively, the walls 24 pressed together and hold the one in between Bridge 30 frictionally. In the case of a press fit, the Recess 28 initially widened somewhat, the web 30 then used and the narrow sides 26 under Bias brought to the web 30 to the system. The extension can be effected in a simple manner in that the web 30th at the end entering the interior of the support tube 22 beveled slightly.
- the web 30 is formed from a flat steel and is regular cuboid.
- the Web 30 on the one hand, about half the height of the interior, while he on the other hand in the area of the cut by about a sixth protrudes beyond the outer surface of the support tube 22. If the the bending forces to be absorbed may require the web 30 also over the entire interior of the support tube 22 and further extend over its outer surface.
- the web 30 is with the Ends of the narrow sides 26 are welded by means of fillet welds. If the walls 24 are tapered, while the web 30 is cuboid or rectangular, takes over the Support tube 22 projecting area of the web 30 outside Wedge shape.
- the web extends 30 only in the area of the support tube 22 between the kink and the console 14. Regardless, a web 30 can also in the Area provided between the kink and the tool 18 become. Unlike shown, the web 30 can also extend through the narrow side 26 located above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Vehicle Body Suspensions (AREA)
- Agricultural Machines (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Component Parts Of Construction Machinery (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Shovels (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Supports For Plants (AREA)
- Table Equipment (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
- Fig. 1
- einen Lader in Seitenansicht und in schematischer Darstellung und
- Fig. 2
- einen Schnitt durch eine Laderschwinge entlang der Linie 2-2 in Figur 1 und in der Blickrichtung der dazugehörigen Pfeile.
Claims (8)
- Laderschwinge (12), insbesondere für einen Frontlader, mit einem Tragrohr (22), dadurch gekennzeichnet, daß das Tragrohr (22) eine Ausnehmung (28) aufweist, in die wenigstens annähernd parallel zu einer Wandung (24) ein Steg (30) eingesetzt und mit dem Tragrohr (22) verschweißt ist.
- Laderschwinge nach Anspruch 1, dadurch gekennzeichnet, daß der Steg (30) über die Außenfläche des Tragrohrs (22) übersteht.
- Laderschwinge nach Anspruch 1, dadurch gekennzeichnet, daß der Steg (30) mit der Außenfläche des Tragrohrs (22) bündig abschließt.
- Laderschwinge nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß das Tragrohr (22) als rechteckiges Vierkantrohr ausgebildet ist, in dessen Schmalseite (26) die Ausnehmung (28) eingebracht ist.
- Laderschwinge nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß sich die Ausnehmung (28) über die gesamte Länge des Tragrohrs (22) erstreckt.
- Laderschwinge nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, daß die Wandungen (24) des Tragrohrs (22) konisch verlaufen.
- Verfahren zum Herstellen einer Laderschwinge (12) gekennzeichnet durch folgende Verfahrensschritte:a) ein Stahlblech wird gemäß einer Abwicklung eines Tragrohrs (22) der Laderschwinge (12) gestanzt oder geschnitten;b) das Stahlblech wird entsprechend der Anzahl der Kanten des Tragrohrs (22), insbesondere vierfach, um jeweils insbesondere 90 Grad gekantet;c) in eine zwischen den Kanten des gekanteten Tragrohrs (22) verbleibende Ausnehmung (28) wird passend ein Steg (30) eingefügt;d) der Steg (30) wird mit dem Tragrohr (22) verschweißt.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß die Größe und/oder das Material des Stegs (30) entsprechend der zu erwartenden Belastung gewählt wird.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10022021A DE10022021A1 (de) | 2000-05-05 | 2000-05-05 | Laderschwinge |
| DE10022021 | 2000-05-05 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1152091A2 true EP1152091A2 (de) | 2001-11-07 |
| EP1152091A3 EP1152091A3 (de) | 2003-01-22 |
| EP1152091B1 EP1152091B1 (de) | 2006-06-28 |
Family
ID=7640956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01110548A Expired - Lifetime EP1152091B1 (de) | 2000-05-05 | 2001-04-28 | Laderschwinge |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6527496B2 (de) |
| EP (1) | EP1152091B1 (de) |
| AT (1) | ATE331846T1 (de) |
| CA (1) | CA2346323C (de) |
| DE (2) | DE10022021A1 (de) |
| DK (1) | DK1152091T3 (de) |
| ES (1) | ES2262571T3 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7377740B2 (en) * | 2003-04-22 | 2008-05-27 | Cook Technologies, Inc. | Lifting device for a personal-transportation vehicle |
| US9592999B2 (en) * | 2011-09-20 | 2017-03-14 | Deere & Company | Boom apparatus with nose body |
| CN103785995A (zh) * | 2013-12-26 | 2014-05-14 | 柳州正菱集团有限公司 | 一种挖掘机回转平台中间平台的生产方法 |
| GB2628159A (en) * | 2023-03-16 | 2024-09-18 | Bamford Excavators Ltd | A method of manufacturing a working arm for a working machine |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2755572A (en) * | 1952-09-06 | 1956-07-24 | John S Pilch | Loader |
| CH336789A (de) * | 1955-05-15 | 1959-03-15 | Baas Erwin | Verfahren zur Herstellung eines Hohlträgers und der nach dem Verfahren hergestellte Träger und seine Verwendung in einem Lastheber |
| CH392811A (de) * | 1961-09-07 | 1965-05-31 | Nortag Aktiengesellschaft | Rohrförmiger, für den Ladebaum eines Lasthebers zu verwendender Träger und Verfahren zu seiner Herstellung |
| CH393676A (de) * | 1962-03-05 | 1965-06-15 | Nortag Aktiengesellschaft | Verfahren zum Herstellen eines Auslegerholmes |
| US3890696A (en) * | 1973-05-10 | 1975-06-24 | Earl R Buske | Tow truck boom and method of constructing same |
| FR2379657A1 (fr) * | 1977-02-02 | 1978-09-01 | Int Harvester Co | Fleche basculante pour chargeur monte sur un tracteur |
| US4459786A (en) * | 1981-10-27 | 1984-07-17 | Ro Corporation | Longitudinally bowed transversely polygonal boom for cranes and the like |
| US4576543A (en) * | 1983-11-07 | 1986-03-18 | Kmw Products Limited | Knock-down construction for front end loader |
| JPH0726415B2 (ja) * | 1989-12-13 | 1995-03-22 | 株式会社クボタ | 作業機のブームアセンブリ |
| DE4328662A1 (de) * | 1993-08-26 | 1995-03-02 | Krupp Ag Hoesch Krupp | Auslegeprofil bzw. Klappspitzenprofil |
| JPH08119571A (ja) * | 1994-10-19 | 1996-05-14 | Yuji Uchiumi | クレーンガーダ用鋼管 |
| US5611657A (en) * | 1995-03-13 | 1997-03-18 | Case Corporation | Reinforced loader arm assembly |
-
2000
- 2000-05-05 DE DE10022021A patent/DE10022021A1/de not_active Withdrawn
-
2001
- 2001-04-28 EP EP01110548A patent/EP1152091B1/de not_active Expired - Lifetime
- 2001-04-28 DE DE50110308T patent/DE50110308D1/de not_active Expired - Fee Related
- 2001-04-28 DK DK01110548T patent/DK1152091T3/da active
- 2001-04-28 AT AT01110548T patent/ATE331846T1/de not_active IP Right Cessation
- 2001-04-28 ES ES01110548T patent/ES2262571T3/es not_active Expired - Lifetime
- 2001-05-02 US US09/847,270 patent/US6527496B2/en not_active Expired - Fee Related
- 2001-05-04 CA CA002346323A patent/CA2346323C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US6527496B2 (en) | 2003-03-04 |
| DK1152091T3 (da) | 2006-10-30 |
| ES2262571T3 (es) | 2006-12-01 |
| CA2346323C (en) | 2005-04-19 |
| EP1152091B1 (de) | 2006-06-28 |
| DE50110308D1 (de) | 2006-08-10 |
| CA2346323A1 (en) | 2001-11-05 |
| ATE331846T1 (de) | 2006-07-15 |
| US20010038789A1 (en) | 2001-11-08 |
| DE10022021A1 (de) | 2001-11-08 |
| EP1152091A3 (de) | 2003-01-22 |
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