Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
  • B61D7/00—Hopper cars
  • B61D7/14—Adaptations of hopper elements to railways
  • B61D7/16—Closure elements for discharge openings
  • B61D7/24—Opening or closing means
  • B61D7/30—Opening or closing means controlled by means external to cars
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
  • B61D7/00—Hopper cars
  • B61D7/02—Hopper cars with discharge openings in the bottoms
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
  • B61D7/00—Hopper cars
  • B61D7/14—Adaptations of hopper elements to railways
  • B61D7/16—Closure elements for discharge openings
  • B61D7/18—Closure elements for discharge openings pivoted

Definitions

• This invention relates to a bottom dump arrangement intended to be attached to a goods-holding space resting on an undercarriage.
• the goods-holding space preferably is a wagon body of an ore wagon, and the bottom dump arrangemant comprises at least one pair of doors, which are at their remote edges pivotally attached for pivotal movement in a plane perpendicular to said edges. In closed state of the doors, the door edges facing to each other abut each other sealingly.
• the doors are connected to the body via a simple joint.
• the body For the dumping operation the body must be lifted from the undercarriage in parallel therewith.
• the lifting can be effected either in that the wagon is moved past guide paths, which must be two in number and be located on both sides of the wagon, or by means of lift arms, which lift the body of the wagon when the wagon is standing still .
• the system of double guide paths is relatively complicated and, therefore, expensive.
• the system comprising lift arms implies, that the wagon has to be stopped for dumping, which lowers the dumping speed.
• the present invention has the object to provide a bottom dump arrangement of the kind referred to above, at which arrangement so-called rolling dumping can be carried out by means of simple guide paths on both sides of the wagon, because the body is not required to be lifted off the undercarriage in parallel therewith.
• Fig. 1 is a partially sectional lateral view of a wagon equipped with the bottom dump arrangement according to the invention
• Fig. 2 is a vertical section through the wagon shown in
• Fig. 1, Fig. 3 is a vertical section through a wagon shown in
• FIG. 1 the bottom doors thereof being open
• Fig. 4 is a plane view of the wagon shown in Fig. 1, Figs. 5, show in detail the linkage supporting the doors,
• Fig. 6 shows in detail how the supporting wheels of the doors abut guide bars in the undercarriage
• Fig. 7 is a plane view of the doors
• Fig. 8 is a lateral view of a guide path
• Fig. 9 is a plane view of a pair of guide paths
• FIGs. 10a show the wagon in different Phases of dumping, 10b, 11 a, 11b, 12a, 12b
• Figs. 13a show details of another embodiment of the invention, 13b
• Fig. 14 shows a sealing detail between the doors
• Fig. 15 shows the connection of the upper door edge to the body.
• the wagon 1 shown in Figs. 1-3 comprises a body 2 and an undercarriage 3 supporting the body.
• the undercarriage comprises wheels 4 abutting rails 5.
• the body 2 is downwardly provided with a bottom dump arrangement 6 comprising doors 7, which are carried by supporting wheels 13 and controlled by a linkage 8.
• the body 2 is provided with an insulating layer 9, in the outside of which a cover layer 10, for example of corrugated sheet metal, is provided. Upwardly on the body 2 in Fig. 4 filler doors 11 are located. These doors are not a part of the main invention and, therefore, are not shown in detail.
• the bottom dump arrangement 6, as already mentioned, comprises doors 7, which are connected to the body 2 and undercarriage 3 via a linkage 8, See Figs. 5, 5a, 5b.
• the linkage 8 comprises a yoke 12 with a bottom portion 12a formed as a sleeve and with two legs 13, which extend from the bottom portion 12a and at their ends remote therefrom are attached pivotally to the doors 7.
• the doors 7 and the yoke 12 are pivotal in a plane perpendicular to the longitudinal direction of the wagon 1.
• a sleeve 14 is rotatably mounted, and on the sleeve two fastening lugs 15 are attached, see especially Fig. 5b, between which one end of a link 16 is pivotally attached.
• the other end of the link 16 is pivotally attached between two fastening lugs 17 on an additional sleeve 18, which in its turn is mounted rotatably at the body 2.
• the sleeves 14 and 18 are rotatable in the same plane as the doors 7 and the yoke 12.
• the link 16 is pivotal in a plane perpendicular to the pivotal plane of the doors 7 and yokes 12.
• each door 7 is provided with a rotatably mounted supporting wheel 19 on the two sides, which are in parallel with the pivotal plane of the doors 7.
• the supporting wheels 19 rest on substantially horizontal guide bars 20 in the undercarriage.
• the body 2 For dumping the wagon 1, the body 2 is lifted off its under carriage 3, in that the wagon 1 is moved past two guide paths 23 arranged on both sides of the wagon 1.
• the guide paths are shown especially in Figs. 8-10.
• the guide paths 23 comprise a beam 24, whidh at its two ends are connected to wheeled stands 25 via links 26. Said links 26 are at their ends pivotally attached to the beam 24 and, respectively, stand 25.
• Two parallel upward directed metal sheets 27 extend from each link 26, between which sheets the projecting piston rod end 28 of a pressure-medium cylinder 29 is pivotally attached. At its opoosite end the hydraulic cylinder 29 is attached to the beam 24.
• a number of supporting wheels 30 are mounted, which are carried rotatably on arms 31 comprised in the beam 24.
• the other end of the arms 31 are supported on springs 33.
• Two unbalanced motors 34 are arranged upon the central arms 31 and cause these arms to carry out vibration movements substantially in vertical direction.
• the two outermost supporting wheels 30 are located on a loiter level than the remaining supporting wheels 30. The reason of this is that the body 2 shall be lifted by degrees from one end. This will be explained more detailed below.
• Fig. 8a It appears especially from Fig. 8a how the links 26 are connected to the stand 25 via double pairs of parallel tie rods 35, which are pivotally attached to the links 26 as well as to the stand 25.
• the beams 24 thereby can be moved transversely to their longitudinal direction substantially in parallel with the base. This movement is controlled by means of pressure-medium cylinders 36 at both ends of the beam 24.
• Fig. 9 a pair of guide paths 23 are shown where the supporting wheels 30 are facing toward each other.
• the Figure also shows schematically the rails 37 for the stand 25 of the guide paths 23. Between said rails 27 also the rails 38 are shown, on which the wagon to be emptied is advanced.
• Figs. 1Ca-12b the wagon 1 is shown in different phases of dumping.
• Figs. 10a and 10b show the wagon 1 when it is just on its way up onto the guide paths 23, which by means of the pressuremedium cylinders 29 and 36 have been so adjusted in their position relative to the wagon 1, that supporting bars 39 of the body 2 are located directly above supporting wheels 30.
• the dumping starts already when the wagon 1 has assumed the position shown in Figs. 11a and 11b, i.e. as soon as the doors 7 start to open.
• the dumping continues and is completed when the wagon 1 has assumed the position shown in Figs. 12a and 12b, in which position the doors 7 are fully open.
• the wagon 1 normally must not be stopped, but can move along the guide paths 23 relatively slowly, with so-called rolling dumping; Preferably, the dumping can be carried out over an underpass.
• the guide paths can be imagined to be moved relative to a stopped wagon.
• the bottom dumping arrangement according to the invention is designed especially for being capable to manage emptying when the body 2 is inclined to the base and, therefore, said variant should not be of great practical value. It is to be pointed out that there is no mechanic connection between the doors 7 and the body 2.
• the body 2 has a downward directed edge 41, which acts as a so-called goods labyrinth, i.e. the goods due to its internal friction cannot leak out past the edge 41.
• doors 7 in open position form inclined planes guiding the goods down between the rails.
• the linkage 8' for the suspension of the doors 7' on the body 2 has in principle a design corresponding to that of the linkage 8 at the embodiment described above.
• legs 13' in Fig. 13a their design is slightly different from that of the legs shown in Fig. 5.
• the legs 13' between their attachments points are bent to the undercarriage and, respectively, to the doors.
• the legs 13' thereby are given V-shape.
• the doors 7' in Fig. 13a have a design which also is slightly modified compared with that of the doors 7 in, for example, Fig. 5.
• the doors 7' are provided with end walls 43 located in the pivoting plane, and the free ends 44 of said walls overlap each other in closed position of the doors 7'.
• the sealing between the free edges of the doors 7 shown in Fig. 14 comprises a pipe 45 attached to one door 7' a end extending along the free end thereof.
• an upper guide sheet 46 is attached in parallel with said pipe 45, and on the lower surface of said sheet a rubber strip 47 is fastened, for example by glueing.
• Holding sheets 48 located at a certain c/c-distance in the pivotal plane of the door 7' extend from the zone for the upper guide sheet 46.
• Said sheets 48 have V-shape, and one leg 48a thereof extends all the way below the pipe 45 in closed position of the doors 7'.
• a guide sheet 49 is attached in parallel with the guide sheet 46. The opening and closing movements of the free ends of the doors 7' are indicated by dash-dotted arrows in Fig. 14.
• the upper edge 51 of the door 7' is located on a higher level than the lower edge 51 of the body 3'. This implies that the internal friction of the goods prevents leakage between the door 7 and the body 3'.
• a complementary elastic sealing 53 may be placed above the upper edge of the door 7'.
• the doors 7' are coated on their inner surface with a rubber layer 54, on which a thin layer 55 of a special rubber with very low surface friction is attached.

Landscapes

• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Handcart (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20339608

Family Applications (1)

Country Status (12)

Cited By (2)

Families Citing this family (6)

Citations (3)

Family Cites Families (7)

• 1979
  • 1979-12-20 SE SE7910528A patent/SE422039B/sv unknown
• 1980
  • 1980-12-18 IT IT26769/80A patent/IT1134798B/it active
  • 1980-12-18 PT PT72236A patent/PT72236B/pt unknown
  • 1980-12-18 JP JP50028181A patent/JPS56501758A/ja active Pending
  • 1980-12-18 BR BR8008986A patent/BR8008986A/pt unknown
  • 1980-12-18 GB GB8125247A patent/GB2080226B/en not_active Expired
  • 1980-12-18 WO PCT/SE1980/000341 patent/WO1981001819A1/en not_active Ceased
  • 1980-12-18 US US06/293,204 patent/US4480954A/en not_active Expired - Fee Related
  • 1980-12-19 FR FR8027115A patent/FR2472995A1/fr not_active Withdrawn
  • 1980-12-19 PL PL22860380A patent/PL228603A1/xx unknown
  • 1980-12-19 ES ES498011A patent/ES8200606A1/es not_active Expired
  • 1980-12-19 IN IN1406/CAL/80A patent/IN154644B/en unknown

Patent Citations (3)

Also Published As

Similar Documents

Legal Events