EP1781493A1 - Vehicle equipped with a v-shaped silo - Google Patents
Vehicle equipped with a v-shaped siloInfo
- Publication number
- EP1781493A1 EP1781493A1 EP05774332A EP05774332A EP1781493A1 EP 1781493 A1 EP1781493 A1 EP 1781493A1 EP 05774332 A EP05774332 A EP 05774332A EP 05774332 A EP05774332 A EP 05774332A EP 1781493 A1 EP1781493 A1 EP 1781493A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- silo
- sheet metal
- gusset plates
- vehicle according
- joint
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
- B60P3/2205—Constructional features
- B60P3/221—Assembling, e.g. layout of steel plates or reinforcing arrangements
Definitions
- the invention relates to a vehicle with V-shaped kinked Si ⁇ lo of sheet metal, wherein the silo has two cylindrical sheet metal parts which are cut obliquely and joined together so that they form an elliptical joint, each sheet metal part lying inside with at least one in operating position of the silos horizontally arranged cross strut and gusset plates ver ⁇ is stiff.
- the vehicle is provided with a chassis on which the silo is mounted.
- the chassis has a front part, which has a king pin, ' and a rear part with a chassis. There is no own engine available.
- the king pin serves to articulate the vehicle articulated to a tractor.
- the mounted on the chassis silo is composed of annular sheet metal parts elongated container whose ends are closed with trays. Between the cylindrically shaped sheet metal parts which form the V-shaped bend and the bottoms, further cylindrical or conical sheet-metal parts may be provided. In this way silos with smaller and larger capacity are formed.
- V-shaped silos of the type mentioned have an upper and a lower generatrix with a V-shaped bend.
- An outlet nozzle is arranged in the apex of the lower generatrix.
- a so-called amplification pot is provided, which is arranged with the outlet nozzle approximately in alignment.
- the kink area of the V-shaped silo is a critical area in terms of strength.
- transverse struts of known vehicles are located in the fully cylindrical region of the sheet-metal parts and transmit both tensile and compressive forces during operation.
- the object of the invention is to propose a vehicle whose silo is designed in such a way that now a high fatigue strength is achieved in the articulated joint.
- the object is achieved in that the transverse Strive both sheet metal parts are each arranged in the obliquely cut Be ⁇ rich of the cylindrical sheet metal part.
- This measure reinforces the area of the sheet metal parts that was previously subjected to a particularly high degree of deformation.
- the articulation has the shape of an ellipse.
- the elliptical shape results because the joined sheet metal parts are obliquely cut cylinders.
- An obliquely cut at one end cylindrical sheet metal piece can be divided into two sections schematically.
- a fully cylindrical area as mentioned above, as well as an obliquely cut area, which looks wedge-shaped in the side view.
- the wedge-shaped area should be referred to as a wedge-cylindrical area for simplicity.
- the fully cylindrical region has a constant circular cross-section in each plane of the cylinder.
- the cross section of the wedge-cylindrical region varies over the height of the cylinder.
- the elliptical shape of the joint has the consequence that in a conventional loading and unloading of the silo with the help of compressed air pressures of 2-3 bar tends to widen the buckling joint and an approximation of the ellipse shape to a Kreis ⁇ form.
- the two areas of the cylindrical sheet-metal parts behave differently.
- the fully cylindrical area retains its circular cross section - there is no change in shape.
- the wedge-cylindrical region is subject to a change in shape, namely approximately the widening of the elliptical shape described above in the region of the buckling joint.
- cross braces which are arranged in the fully cylindrical region of the sheet metal pieces.
- the cross struts counteract bending and twisting of the silo.
- they do not help against a change in shape due to compressed air pressure in the wedge-cylindrical region of the sheet metal part near the articulation joint. Damage to the connection of the joint are the result.
- the gusset plates are provided parallel to the articulation joint.
- the proximity between gusset plate and bend joint is essentially limited by the production method.
- certain minimum distances must be observed in a welding process, because if the minimum distances are not reached, losses in the quality of the weld seams would occur.
- the cross struts and gusset plates in the two sheet metal parts may lie only so close to each other that sufficient space remains for the application of a welding device.
- the shape of the gusset plates is adapted to the mechanical stresses that can be generated by transferring forces between the transverse struts and the silo wall.
- a point-shaped force transfer would take place without the presence of gusset plates. This would generate a high mechanical stress in the silo wall at the contact point. With increasing distance from the contact point, the mechanical Tension in the silo wall decrease.
- the voltages can be represented as a function of the distance of the contact point.
- a gusset plate can be designed so that its height decreases with increasing distance from the contact point. Ideally, the height of a gusset plate is based on the function of the above mentioned voltage variation in the silo wall. Approximately, a crescent-shaped contour results for a gusset plate adapted to the load.
- no gusset plate may penetrate, because in most cases continuous loosening mats are arranged, which serve to loosen the bulk material for the purpose of emptying the silo.
- the spout is located there. Therefore, the gusset plates that extend to the silo bottom are formed shorter than the upper gusset plates.
- the gusset plates are connected to at least half of the elliptical ümfangs with the sheet metal part. In this way, a good load distribution over the elliptical cross section is achieved.
- the sheet metal parts, gusset plates and cross braces with welds are connected to each other.
- the gusset plates which extend upward from the transverse struts in the operating position are pushed against a reinforcing pot and connected thereto.
- a reinforcing pot is usually used in welded constructions, star-shaped on a To avoid point-to-point welding seams. The narrower the angle between adjacent weld seams, the more critical are star welds that tap into a single point. To remedy this problem, it is common practice to weld a reinforcing pot around the center of the welds. Instead of concentrating in the center, instead, the welds abut against the circular weld of the reinforcement pot at an obtuse angle.
- the reinforcing pot projects so far through the silo wall that the gusset plates on the inner wall of the silo abut against the reinforcing pot and are welded thereto, for example.
- the silo bottom is reinforced in the region of the articulation by the rear part of the chassis.
- the chassis has in this area a stable frame of longitudinal and transverse beams for the chassis.
- the frame relieves the gap in the area of the silo floor.
- the articulation is
- 1 is a vehicle with a V-shaped kinked silo
- FIG. 3 shows a section through the articulated joint according to the section III-III of Fig. 2,
- Fig. 1 shows a vehicle according to the invention 1. It is a semi-trailer, which is hung for a transport of bulk material to a tractor (not shown).
- the driving 1 is provided with a chassis 2, on which a silo 3 is mounted as a construction with self-supporting properties.
- the chassis 2 is shown in dashed lines, so that the silo 3 is clearly visible.
- the 2 chassis has a front part 2a with a king pin 4 and a support 5 and a hin ⁇ nic part 2b with a three-axle chassis 6.
- the Königsbol ⁇ zen 4 is provided to articulate the vehicle 1 to a Switzerlandma ⁇ machine. With the support 5, the vehicle 1 is then held when it is free without tractor.
- the silo 3 is bent in a V-shape.
- the shape of the silo 3 is symmetrical to the kinked plane.
- Ring-shaped sheet metal parts 7, 8, 9 and 10 are joined together, resulting in an elongated container.
- the ends of the container are closed with bottoms 11 and 12.
- the kink is composed of two cylindrical sheet metal parts 7 and 8, which have been cut obliquely. The diagonally cut ends are set against each other. Because an obliquely cut cylinder gives an elliptical cut line, the joint 13 of the silo 3 is likewise elliptical.
- the V-shape of the silo 3 is described by an upper and a lower generatrix, both of which are kinked in a V-shape.
- an outlet connection 14 is arranged in the area of the lower generatrix.
- the outlet connection 14 is either arranged next to the bend joint 13 or is arranged in the articulation joint 13 so that it has an interruption.
- a so-called reinforcing pot 15 is provided in the vertex of the upper generatrix .
- the reinforcing pot 15 interrupts the bending joint 13.
- At the upper generatrix extends a weld, which would cross the joint without the presence of the reinforcing pot 15. The reinforcing pot 15 thus prevents star-shaped welds running towards one another.
- the truncated cones are formed so that the unte ⁇ re generatrix of the truncated cone 9 is aligned with the lower surface line of the cylindrical sheet metal parts 7 and the upper Man ⁇ telline the truncated cone 9 in the horizontal direction of the upper surface line 7 of the truncated cone 9 kinkickt.
- a buckling reinforcement plate K is arranged parallel to the direction of travel.
- the ke ⁇ gelförmigen sheet metal parts 9 and 10 are provided at the upper generatrix with a manhole 9c and 10c.
- FIG. 2 An enlarged section of the bending region of the silo 3 is shown in FIG. Evident are the two cylindrical sheet metal parts 7 and 8, whose obliquely cut ends gegeneinan ⁇ set and welded.
- the resulting articulation joint 13 is elliptical.
- Fig. 2 in both cylindrical sheet metal parts 7 and 8 a dash-dotted linerij ⁇ draws.
- This line divides the respective sheet metal part into a fully cylindrical region 7a or 8a and into an obliquely cut region, which is referred to below as a wedge-cylindrical region 7b or 8b.
- a transverse strut 16 or 17 is provided in each case.
- Each transverse strut 16 or 17 has moved close to the articulation joint 13 in order to prevent a change in shape of the elliptical articulation joint 13.
- the transverse struts 16 and 17 are connected there to the silo wall, where the narrowest point of the elliptical shape is located.
- gussets 18 and 19 are provided as shown in FIG., Which are arranged parallel to the articulation joint 13.
- the gusset plates known from the prior art are always mounted obliquely to the kink plane. The now proposed gusset plates are pivoted such that it has become possible to approach the cross struts 16 and 17 as well as the associated gussets 18 and 19 very close to the gullet 13.
- FIG. 3 shows a cross section through the articulation joint 13.
- the transverse strut 17 of the sheet metal part 8 is to be seen, as well as the stiffening gusset plates 19a, 19b, 19c and 19d.
- additional metal strips 20 and 21 are provided, with which the thin silo wall in the gusset plates 19a, 19b, 19c and 19d is reinforced.
- the metal strips 19a, 19b, 19c and 19d are shown in Fig. 2 as a long tongue-shaped bands.
- the shape of the gusset plates 19a, 19b, 19c and 19d is adapted to the mechanical stresses that occur in the introduction of force between the cross member 17 and the sheet metal part 8 of the silo wall. The same applies to the gusset plates in the opposite sheet metal part 7.
- the mechanical stresses are high. With increasing distance from the contact point, the stresses in the silo wall decrease.
- the gusset plates 19a, 19b, 19c and 19d are designed so that their height decreases with increasing distance from the contact point.
- the illustrated crescent-shaped contour results for the adapted gusset plates 19a, 19b, 19c and 19d.
- the silo floor is left empty. There are none of the nodules 19b and 19c down to the silo bottom, because there fürge ⁇ rising blow mats are installed, which serve to loosen the bulk material for the purpose of emptying the silo 3.
- the outlet nozzle 14 is arranged on the silo bottom. For this reason, the gusset plates 19b and 19c extending to the silo bottom are shorter than the upper gusset plates 19a and 19d.
- the node plates 19a and 19d extend upward in the operating position from the transverse struts to the reinforcing pot 15.
- the reinforcing pot 15 protrudes so far through the silo wall that the gusset plates 19a and 19d abut laterally against the reinforcing pot 15 and are welded thereto.
- the reinforcing pot 15 is further provided with a compressed air connection 24.
- Fig. 4 In the detail view of Fig. 4 is a section through the cross member 17 is shown. It can be seen the gusset plates 19c and 19d and the sheet metal strip 20, which is welded to the wedge-cylindrical region of the sheet metal part 8. With the caterpillar-shaped lines, the welds are indicated, with which the Blech ⁇ parts are connected.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410037265 DE102004037265A1 (en) | 2004-07-31 | 2004-07-31 | Vehicle with V-shaped kinked silo |
PCT/DE2005/001333 WO2006012862A1 (en) | 2004-07-31 | 2005-07-27 | Vehicle equipped with a v-shaped silo |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1781493A1 true EP1781493A1 (en) | 2007-05-09 |
Family
ID=35079282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05774332A Withdrawn EP1781493A1 (en) | 2004-07-31 | 2005-07-27 | Vehicle equipped with a v-shaped silo |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1781493A1 (en) |
DE (1) | DE102004037265A1 (en) |
WO (1) | WO2006012862A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006062197B3 (en) * | 2006-12-22 | 2008-06-19 | Hermanns Silo Gmbh | Bulk transporter has bend which forms slide zone assembled from two container sections each with shape of inclined truncated cone, and bend which forms emptying zone is assembled from two container sections each with cylindrical shape |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1261156B (en) * | 1962-07-17 | 1968-02-15 | Linke Hofmann Busch | Tension strut in the interior of a rail tank car |
US3379478A (en) * | 1966-02-16 | 1968-04-23 | Gen Am Transport | Railway cars for transporting pulverulent material ladings |
DE3048868A1 (en) * | 1980-12-23 | 1982-07-22 | Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm | "PRESSURE VESSEL" |
JPS58170641A (en) * | 1982-03-31 | 1983-10-07 | Shin Meiwa Ind Co Ltd | Tank construction of granule transport truck |
-
2004
- 2004-07-31 DE DE200410037265 patent/DE102004037265A1/en not_active Withdrawn
-
2005
- 2005-07-27 WO PCT/DE2005/001333 patent/WO2006012862A1/en active Application Filing
- 2005-07-27 EP EP05774332A patent/EP1781493A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2006012862A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE102004037265A1 (en) | 2006-03-23 |
WO2006012862A1 (en) | 2006-02-09 |
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Legal Events
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Effective date: 20090109 |