Classifications

• • 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
  • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
  • B65G39/10—Arrangements of rollers
  • B65G39/12—Arrangements of rollers mounted on framework
  • B65G39/16—Arrangements of rollers mounted on framework for aligning belts or chains
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
  • F16H55/32—Friction members
  • F16H55/36—Pulleys
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H7/00—Gearings for conveying rotary motion by endless flexible members
  • F16H7/18—Means for guiding or supporting belts, ropes, or chains

Definitions

• the present invention relates to a belt drum for counteracting lateral displacement in relation to the drum by a belt extending round the drum,which includes two opposing end walls, a shaft passing through the end walls and adjustable means surrounding the shaft.
• a cambered drum has a conically shaped shell, with the greatest diameter of the drum in the region of its central portion.
• a disadvantage with conventional cambering is that an uneven stress distribution occurs in the belt.
• the camber causes a considerable rise in the maximum belt stress, which can have a damaging effect, above all on the central portion of the belt.
• the object of the present invention is to achieve a belt drum which does not have the mentioned disadvantages, and this object is attained by the belt drum being given the distinguishing features disclosed in the claims.
• cambering is not required for guiding the belt.
• the inventive belt drum is a simple, but effective solution to the problem of guiding the belt. Nearly all the lateral displacements of the belt are counteracted as soon as they arise, and the belt stesses occurring are distributed across the entire belt width.
• Figure 1 is a schematical cross section of an inventive belt drum
• Figure 2 is a schematical section along the line II-II in Figure 1
• Figure 3 is a schematical, longitudinal section of another embodiment of a belt drum in accordance with the invention.
• the drum 1 includes two end walls 2, which are suitably unrotatably mounted on a shaft" 3 passing through the end walls.
• the shaft 3 is mounted in suitable bearings 6, which are in turn carried by supports 7 resting on a substructure 8. It is also conceivable to have the shaft 3 fixed and the end walls rotatably mounted on the shaft.
• the end walls 2 are provided with through holes at uniform circumferential spacing, pins 4 being rotatably mounted in the holes parallel to the shaft 3.
• the pins 4 carry preferably tubular cylinders or rolls 5, the central axes of these rolls deviating from those of the pins 4 in a diametral plane, i.e. the rolls 5 are eccentric to the pins 4.
• This eccentricity can vary, depending on how large a deviation is permitted between the central axes of pins and rollers.
• a plurality of rolls, here eight, serve as the cylindrical shell of the drum. The number of rolls may be greater, although it must be ensured that the rolls can not come into mutual contact for maximum eccentricity.
• the rolls 5 are unrotatably mounted on pins 4 or shafts 9, but it is also conceivable to have the rolls 5 rotatably mounted in fixed pins 4 or shafts 9.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
• Motorcycle And Bicycle Frame (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Structure Of Belt Conveyors (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=20363723

Family Applications (1)

Country Status (2)

Cited By (2)

• 1986
  • 1986-03-06 SE SE8601040A patent/SE451492B/sv not_active IP Right Cessation
• 1987
  • 1987-09-01 WO PCT/SE1987/000391 patent/WO1989002042A1/en unknown

Non-Patent Citations (1)

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