Classifications

• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H7/00—Spinning or twisting arrangements
  • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
  • D01H7/04—Spindles
  • D01H7/045—Spindles provided with flexible mounting elements for damping vibration or noise, or for avoiding or reducing out-of-balance forces due to rotation
  • D01H7/047—Spindles provided with flexible mounting elements for damping vibration or noise, or for avoiding or reducing out-of-balance forces due to rotation with springs
• • D—TEXTILES; PAPER
  • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
  • D01H—SPINNING OR TWISTING
  • D01H7/00—Spinning or twisting arrangements
  • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
  • D01H7/04—Spindles
  • D01H7/20—Lubricating arrangements

Definitions

• the invention relates to a ring spinning spindle with a spindle bearing housing and a radially movable bearing sleeve arranged in this, centered by restoring means and damped by vibration damping oil, in which a neck bearing and a foot bearing for the rotatable spindle part are fastened.
• the classic and predominantly used ring spinning spindle for example according to DE 26 37 715, carries at the upper end of its rigid bearing housing a neck bearing designed as a roller bearing and supporting the spindle shaft.
• This bearing is arranged in the running plane of the drive belt or drive belt and absorbs its one-sided storage pressure so that it does not decenter the spindle.
• Rigidly fastened in the bearing housing is also an elastic bearing sleeve, at the lower end of which the foot bearing is seated.
• This bearing which is usually designed as a tip plain bearing, bears the weight of the spindle shaft and the weight in the attached cop.
• the lower part of the bearing sleeve is surrounded by a damping sleeve, which consists of spirally wound sheet metal and which the bearing sleeve tries to hold in its coaxial central position or to push it back into this central position.
• the damping sleeve is in an oil bath.
• the oil in the oil bath has the function of oiling the foot bearing as well as dampening the vibrations of the bearing sleeve if the spindle shaft runs unevenly as a result of imbalances, by displacing the damping oil from the spaces between the positions of the damping sleeve.
• the oil from this oil bath also lubricates the neck bearing.
• the CH 458 157 also shows a textile spindle with a roller-mounted, rotatable upper part of the spindle.
• the use of damping oil is not intended here due to the lack of a seal.
• DE 153 241 shows a textile spindle with roller bearings as a neck and foot bearing.
• the rolling bearings are obviously not those with permanent lubrication.
• the object of the invention was therefore to achieve a simplification here.
• the invention therefore provides two separate bearing sleeves for the neck bearing and the foot bearing.
• a separate centering means and a separate damping means are also assigned to each of the bearing sleeves.
• the invention provides for the use of proven damping spirals and damping oil. Since the rolling bearings lubricated for their service life no longer have to be lubricated by the damping oil, this is limited its function on steaming. Since it is not subject to significant wear and aging, it does not need to be replaced and is also a lifespan. It is also possible to use a different, liquid damping agent instead of the damping oil.
• the ring spindle therefore no longer requires any maintenance with regard to lubrication.
• the bearing sleeve is therefore liquid-tight according to the invention.
• the sections of the bearing sleeve containing the neck bearing and the foot bearing are separated by an elastic intermediate area and remain largely decoupled from one another in terms of vibration and movement.
• this decoupling can consist in an elastically designed area of the otherwise one-piece bearing sleeve, in that it is elastic in this area, for example due to deep beads or reduced material thickness.
• the bearing sleeve consists of two separate partial bearing sleeves which are connected to one another by an elastic, oil-tight membrane.
• FIG. 1 shows longitudinal sections through the ring spindle, FIG. 1 with damping means in the form of damping spirals and damping oil on separate bearing sleeves; Fig. 2 as Fig. 1, but on a one-piece bearing sleeve.
• the ring spinning spindle 1 has a tubular spindle bearing housing 2 which is closed at the bottom and which can be fastened in a common manner (not shown here) by means of a fixed flange resting on the spindle bench and a nut which can be screwed against the spindle bench from below.
• an upper spindle part 3 is rotatably mounted. It consists of a head carrier 4, onto which the sleeve of the cop not shown here can be attached, the whirl bell 5 and the spindle shaft 6.
• a drive belt 7 or an A drive belt runs over the circumference of the whirl bell 5, by means of which the spindle upper part 3 is driven.
• the spindle shaft 6 is mounted in two roller bearings 8 and 9, of which the upper, so-called neck bearing 8, is arranged in the plane of the drive belt 7 and absorbs its contact pressure. It thus prevents this from acting as a tilting moment on the upper spindle part 3 and impairing its centering relative to the spinning ring.
• the other roller bearing 9 is arranged near the lower end of the spindle shaft 6.
• the roller bearings 8 and 9 can be designed as ball bearings or as roller bearings with ball or roller cages and with or without an inner ring. They are provided with lifetime lubrication so that they do not require any relubrication. Inner rings and outer rings 10, 11 of the rolling bearings can be pressed onto the spindle shaft 6 and pressed or crimped into the bearing sleeve 12/13. In this way, you also determine the height of the upper spindle part 3 in the spindle bearing housing 2 and secure it against being pulled out, for example when the cop is removed. If the roller bearings 8 and 9 do not have an inner ring as shown, a raceway for the balls or the rollers is incorporated for this purpose at least on one of the roller bearings.
• the upper part 3 of the spindle is excited by the unbalanced, overhung Kops to wobble movements which must be damped in order to achieve a smooth running of the ring spinning spindle.
• the outer rings 10 and 11 of the roller bearings 8 and 9 are fastened in rigid partial bearing sleeves 12 and 13, which are resiliently and centered in the spindle bearing housing 2.
• the elastic fit is achieved by a damping spiral 16 or 17 made of rolled sheet metal, which are arranged in the gap between the spindle bearing housing 2 and the partial bearing sleeves 12, 13.
• this gap is filled with damping liquid medium, preferably with damping oil 18, close to the upper end of the upper damping spiral 16.
• This damping medium has to be displaced when the damping spiral is deformed and thus effectively contributes to dampening the wobbling movements.
• damping means 18 In order to prevent damping means 18 from penetrating into the partial bearing sleeves 12, 13, these can be connected to one another according to FIG. 1 by an elastic, tubular, liquid-tight membrane 19.
• the membrane 19 is drawn with end cuffs over corrugated collars of the partial bearing sleeves 12, 13.
• Separate bearing sleeves offer the advantage that their damping movements do not influence each other and thus a maximum damping effect can be achieved.
• the two roller bearings 8, 9 can also be arranged in a one-piece bearing sleeve 20. This decoupling of the damping movements can be achieved by particularly thin-walled design of the connecting area between the areas of the bearing sleeve 20 receiving the outer rings 10, 11 and / or by deep beads or corrugation 21 in this area.
• the gap between the spindle bearing housing 2 and the (upper) partial bearing sleeve 12 or the one-piece bearing sleeve 20 is sealed by a sealing washer 22, which prevents the escape of steaming agent 18 and in particular its entry into the partial bearing sleeves 12, 13 or the bearing sleeve 20.
• Small amounts of excess damping agent 18 can accumulate in a collecting container 23 of the bearing sleeve 13 or 20 under the lower end of the spindle shaft, where it does not come into contact with the rotating spindle shaft.
• Damping spiral 17 Damping spiral 18 Damping means 19 Membrane 20 Bearing sleeve 21 Beading, corrugation 22 Sealing washer 23 Collection container

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Spinning Or Twisting Of Yarns (AREA)
• Support Of The Bearing (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=34071759

Family Applications (1)

Country Status (4)

Families Citing this family (7)

Family Cites Families (7)

• 2003
  • 2003-07-17 DE DE2003132748 patent/DE10332748A1/de not_active Withdrawn
• 2004
  • 2004-07-14 WO PCT/DE2004/001528 patent/WO2005010249A1/de not_active Application Discontinuation
  • 2004-07-14 CN CN 200480020660 patent/CN1823187A/zh active Pending
  • 2004-07-14 EP EP04738911A patent/EP1646739A1/de not_active Withdrawn
  • 2004-07-14 DE DE112004001804T patent/DE112004001804D2/de not_active Expired - Fee Related

Non-Patent Citations (1)

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