Classifications

• • 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
  • F16N—LUBRICATING
  • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
  • F16N7/14—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means
  • F16N7/16—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means the oil being carried up by a lifting device
  • F16N7/18—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the lubricant being conveyed from the reservoir by mechanical means the oil being carried up by a lifting device with one or more feed members fixed on a shaft
• • 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
  • F16H57/00—General details of gearing
  • F16H57/04—Features relating to lubrication or cooling or heating
  • F16H57/048—Type of gearings to be lubricated, cooled or heated
  • F16H57/0497—Screw mechanisms

Definitions

• the invention relates to a device for supplying the outer surface of a stationary component, around which a second component rotates, with liquid lubricant from a reservoir, with a scooping device assigned to the rotating component, which receives lubricant from the reservoir when the rotating component rotates and to the outer surface of the standing component.
• the invention has for its object to provide a device for lubricant supply ', which is simple in construction and is suitable for directing the lubricant in a simple manner directly to the outer surface to be lubricated of a stationary component.
• the scoop consists of a ring with a hollow cross section, which is fixed to the rotating component eccentrically to its axis of rotation and which has an opening on its inner circumference, which in the reservoir during rotation dips and that there is a second opening distributed around the circumference and the ring with the second opening is arranged close to the outer surface of the standing component.
• the advantage of this design is that the eccentric movement of the ring is used to take up oil via the first opening and to release it via the second opening to the outer surface of the component to be lubricated and standing. In this way it is also possible to use rotary movements of the rotating component in order to supply the lubricant to the stationary component.
• a storage ring in particular a felt ring, be arranged between the outer surface of the standing component and the ring, which serves to receive and pass on the lubricant.
• the ring overlaps the standing component, the second opening being arranged on the inner circumference of the ring.
• the ring it is also possible for the ring to touch the outer surface of the standing component and for the second opening to be arranged on the outer circumference of the ring.
• the second opening of the ring is adapted to the contour of the outer surface of the standing component.
• one or more additional rings can be attached distributed around the circumference.
• a second ring is preferably arranged diametrically to the first ring in order to simultaneously achieve an imbalance compensation at high speeds.
• a preferred area of application is that of the spindle drives, the stationary component being the spindle and the rotating component being represented by the nut. It can be a threaded spindle and a threaded nut, or it can also be a ball screw drive or a roller screw drive.
• the ring is preferably connected to the rotating component by gluing, welding, soldering or positive locking.
• FIG. 1 shows an arrangement of a guide unit
• Figure 2 shows a longitudinal section through the table with the nut bearing and the arrangement of the spindle that forms the stationary component
• FIG. 3 shows the nut mounting as a detail from FIG. 2 on an enlarged scale
• FIG. 4 shows a simplified cross-sectional illustration of FIG. 3, 5 shows schematically different positions of the rotating ring with respect to the stationary component,
• Figure 6 shows another solution in which the standing component tangent to the ring from the outside and
• Figure 7 shows an alternative embodiment with an intermediate storage ring.
• the guide unit shown in Figure 1 comprises the table 1, which is movable along guide rails 2.
• a screw drive is provided for moving the table 1, which, as can be seen from FIG. 2, has a nut 3 which belongs to a screw drive and can be driven in rotation by a drive.
• the nut 3 moves the table 1 along the guide rails 2 by adjustment on the spindle 6, which is designed as a standing component.
• the spindle 6 is held in the bearing blocks 7 in a rotationally fixed manner.
• the table 1 or a console connected to it form the housing 5.
• a sleeve 8 is rotatably mounted via roller bearings 4.
• the nut 3 is rotatably connected to the sleeve 8.
• the nut 3 is penetrated by the spindle 6 as a standing component.
• the sleeve 8 or the nut 3 can represent the rotating component.
• openings 21 are milled from the end face 10, the course of which is adapted to the contour of the rings 11, so that they are held in a form-fitting manner.
• the width of the milling corresponds to the thickness of the e can only be attached by gluing, welding or soldering.
• the rings 11 are hollow.
• the cavity is designated 12.
• the two rings 11 are offset from one another by 180 ° and fastened to the sleeve 8 eccentrically to the axis of rotation Xx. They overlap the spindle 6 (design according to FIGS. 2 to 6) on the inner circumference 13 there is a first opening 15 which creates a connection to the cavity 12.
• the rings 11 dip once per revolution of the nut 3 or sleeve 8 due to their eccentric arrangement with the first opening 15 into the liquid level of the lubricant reservoir 19 and absorb lubricant. This is conveyed through the cavity 12 upon further rotation in the direction of the second opening 16 and exits at the second opening 16 so that the outer surface 17 of the spindle 6 is wetted.
• the second opening 16 is provided on the inner circumference 13 of the ring 11.
• the opening 16 is adapted to the outer contour of the outer surface 17 of the spindle 6 and clings closely to it.
• the two rings 11 overlap the spindle 6.
• FIGS. 5a to 5f Different phases of the positions of the rings 11 with their openings 15, 16 with respect to the spindle 6 or the lubricant reservoir 19 can be seen from FIGS. 5a to 5f.
• the rings 11 touch the outer surface 17 of the spindle 6.
• the second opening 16 is provided on the outer circumference 14 of the ring 11.
• the lubricant reservoir 19 is supplied by a lubricant line 18, via which the roller bearing 4 is supplied.
• the reservoir 19 is open to the rolling bearing 4.
• FIG. 7 a solution (shown schematically) can be seen in FIG. 7, in which a storage ring 20 in the form of a felt ring is additionally arranged between the outer surface 17 of the spindle 6 and the openings 16 of the rings 11.
• the storage ring 20 initially receives the lubricant from the rings 11 via the openings 16 and passes it on to the outer surface 17 of the spindle 6.
• the openings 16 are adapted to the outer circumference of the storage ring 20.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transmission Devices (AREA)
• Rolling Contact Bearings (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6429230

Family Applications (1)

Country Status (3)

Citations (5)

Family Cites Families (1)

• 1991
  • 1991-04-10 DE DE19914111609 patent/DE4111609C1/de not_active Expired - Lifetime
• 1992
  • 1992-03-20 WO PCT/EP1992/000615 patent/WO1992018802A1/de not_active Application Discontinuation
  • 1992-03-20 EP EP19920906858 patent/EP0580612A1/de not_active Withdrawn

Patent Citations (5)

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