DE2108449B2 - Self aligning bearing - lubricanting and cooling inner roller set with oil supplied to bearing - Google Patents

Abstract

Lubricating and cooling device for self-aligning bearings in paper or textile webs calenders, whereby the bearings include three races, the inner and central one of which are connected to calender cylinder shaft and a drive shaft, resp. and the races define between them an inner and outer radial chamber, the device including an oil ring mounted hermetically on the outer periphery of the hollow end portion of the drive shaft which is interconnected by means of the central race with the hollow sleeve of the calender cylinder, the oil ring which is stationary being provided on its inner wall with an annular groove supplied with cold oil through a radial supply tube to lubricate and cool the inner roller set. Cold oil is admitted to the inner radial chamber through radial slots in the hollow end portion of the drive shaft, the lubricating and cooling oil on passing axially through the inner roller set being admitted to the outer radial chamber through further radial bores.

Description

3 4

Existing radial bore in the drive shaft and ring roller bearing6. The middle race 5 is with

one of these in the area of the bore with a ring to the hollow cylinder 2 through coupling parts 7, 8 and 9

Channel surrounding, fixed oil supply connected.

ring and a line opening into the ring channel A stationary housing 10 supports the axis 3 with the hollow cylinder 2 on the other side on its opposite side on the drive shaft, which moves away from the drive shaft via the three with a separate pressure oil source and 5 ring roller bearings 6. The housing 10 encloses the th Side by means of bores with an annular space connected to the oil three-ring roller bearing 6 and the adjacent sides return flow between the hollow cylinder 3 and the drive shaft 4.
Outer ring and middle race of the rolling bearing. A tube 11 is fastened in the housing 10, which opens into the ring channel 12 of a piece fastened to the housing 10, that is to say through a fresh oil flow, oil supply ring 13. The ring 13 is then both the thermally less critical outer side of the rolling element set sealingly on a cylindrical outer surface. 14 of the drive shaft 4 is arranged. In the Antnebs-known the principle is, for the transmission of a shaft 4 two bores 15 are provided, which liquid between a solid housing and a 15 each communicating with the annular channel 12 on the one hand rotating shaft in the shaft at least ren, on the other hand with a cavity 16 in the End part to provide a radially opening bore, which communicates with the drive shaft 4 in front of the adjacent end with an annular channel, into which one on the axis 3. With the space 16, the annular space between the housing is provided connecting line to a see the inner ring and with the middle raceway a Pressurized fluid source opens, wherein the annular channel 20 of the three-ring roller bearing C. in connection, in which the rotating shaft or on the fisted horns the inner roller body set 17, consisting of housing, can be provided, for example on one of two rows of barrel rollers,
attached ring. This principle is, for example, the annular space between the inner ring and the middle in the case of hydraulically actuated clutches and the race 5 of the three-ring roller bearing 6 is realized with the ship's propellers with hydraulically adjustable 25 annular space between the outer ring and the middle running screw blades (British paring 5 of the three-ring -Wälzlager 6. in which the tentschrift 1 208 793, USA.-Patent 3 186 723 outer rolling element set 19, also consisting of and German Offenlegungsschrift 1 525 479). The invention does not relate to the protruding side facing away from the drive shaft 4 through bores, as described in the general principle. It has a lot of connections, which can be seen in the coupling part 7 in advance of measures taking advantage of this principle.

to the subject with which a sufficient and The housing 10 is with an oil drain opening 20

uniform lubrication and cooling, especially provided. Furthermore, the annulus is between

those of the inner roller bearing set on the hollow cylinder 2 and axis 3 of the space inside the drive side a floating roller provided 35 half of the housing 10 by a sealing ring 21

Three-ring rolling bearing, are guaranteed. The inner one separates.

Rolling element set, which has the highest cooling requirement fresh, cool oil is applied, pressure via the pipe or the connecting line 11 which is also fed according to the operational requirements. It passes through the annular channel 12 and conditions of the three-ring roller bearing selected 40 the holes 15 in the space 16 to become the ring can. Space between the inner ring and the middle race 5 to flow through the outer set of rolling elements of the three-ring or three-ring rolling bearing 6. About the Rolling bearing is used to cool and lubricate bores 18, the oil then passes into the annulus the oil flows through before it drains. Since the outer ring between the middle race 5 and the outer ring of the Rolling element set opposite the inner one 45 three-ring rolling bearing 6 and then flows through If there is a greater need for cooling, there are no additional openings 20 to an oil container part (not shown) from the fact that the oil first passes the inner roller with the oil circulation pump.

body set flows through. So with the fresh oil it will first be the number next to it is an embodiment of the invention particularly highly stressed inner rolling element set 17 Application based on the drawing, for example, is lubricated and cooled, with the coupling letters as well. The single figure shows a longitudinal part 7, 8 and 9 acted upon, ie. H. lubricated and cut by a floating roller on which to cool. This is followed by the cooling drive side, provided with a development according to the invention and lubrication of the outer set of rolling elements Lubrication device. 19th

The roller has an OI, which acts on a spherical roller bearing 1 55 The Has three-ring roller bearing 6

rotatably mounted hollow cylinder 2. The hollow cycle is completely off through the sealing ring 21

cylinder 2 is arranged on an axis 3 and is separated from that oil with which the annular space

set in rotation by a drive shaft 4, acted upon between hollow cylinder 2 and axis 3

namely over the middle race 5 of a three-way.

1 sheet of drawings

Claims (1)

1 2 is arranged coaxially to the middle race, d, h, Claim also for the axle and the dam-mounted iiohlzy lighter. The hollow cylinder is therefore driven Device for lubrication of the drive side via the middle race of the three-ring roller bearing floating rollers of machines for 5 from the drive shaft. • Pressure treatment of paper and textile webs, the lubrication device for the Dreinng roller bearing The roller is arranged on a fixed axis in such a way that the inner and outer roller has rotatably mounted hollow cylinders through which separate oil flows flow through body sets with a coaxial drive shaft via the middle. The outer set of rolling elements is hit with oil beleren the running ring of the adjacent end of the io, which is guided on the drive side supporting axis on the drive side. The inner set of rolling elements, however, is coupled to the ring-rolling bearing whose inner and outer oil is applied through which oil flows to the outside, maintaining the cylindrical shape of the hollow cylinder, characterized in that a milder is used in the operation of the roll. For this purpose, the annular space between the axis and the hollow cylinder 15, which is sealed over the annular space between the hollow cylinder 15 via (2) and the axis (3), is an annular space between a channel and an adjoining annular groove, see the inner ring and the middle raceway (5) of the inner ring and the middle raceway (5) in the axis and communicating with it, radial three-ring roller bearing (6) on the one hand via an on-bores in the inner ring of the three-ring Wäb.lagers with a closing cavity (16) in the end part of the on the annular space between the inner ring and the middle drive shaft (4), at least one of the cavity 20 running ring of the Three-ring rolling bearing connected. The outgoing radial bore (15) in the drive shaft towards the annular space between the hollow cylinder and the axle and an oil guided through it in the area of the bore, i.e. after leaving this annular duct (12) enclosing the annular space, it also flows through the annular space between the inner ring and the oil supply ring ( 13) and one in the and middle race of the three-ring roller bearing to the ring channel opening line (H ') with a se- 25 then to drain into an oil reservoir, as well as the separate pressure oil source is connected and an oil flow for the outer set of rolling elements of the three-side on its ring rolling bearing facing away from the drive shaft. th side by means of bores (18) with a lubrication device known to this on the Andes Oil return connected annulus on the drive side of a floating roller (French See outer ring and middle race of the 3 ° patent specification 1482 349) has been found to be disadvantageous for rolling bearings. displayed. Such lubrication devices must not only guarantee the lubrication of the bearing, but also ensure sufficient heat dissipation reliably care. The known lubrication device 35 is particularly capable of the inner set of rolling elements of the three-ring roller bearing neither too cool- The invention relates to a device to still lubricate reliably, which is why the Lazur lubrication of the drive side of floating gelation on the drive line of the known floating rollers of machines for pressure treatment of menden rollers have often failed.
Paper and textile webs, with the roller having an oil supplied to the inner roller bearing set of the three-ring of a fixed axis rotatably mounted hollow cylinder roller bearing is already heated. Except for the one with a coaxial drive shaft above it, it has only that viscosity which is required for the middle race of a three-hollow cylinder carrying the adjacent end for use in the annular space between the axle and the axle on the drive side. A higher viscosity, ring-rolling bearing is coupled, whose inner and outer 45 as it would be desirable in itself, does not come in ßere rolling element sets are traversed by oil. Question. In the case of such floating rollers, it is necessary to hindrance of those elastic deformation of the renten already different possibilities in Er-hollow cylinder in the operation of the roller, which is considered, but so far no usable Lö-Grund of the pressure between the hollow cylinder and 50 solution. For example, it was thought the acted upon material results in the instead of the formation of the three-ring roller bearing in the in-annular space between the axis and the hollow cylinder neren part as a spherical roller bearing a lower friction Pressurized oil introduced, from constructive bearings to be used, however, are to be used at this point Reasons from the side, which take up the drive side adjustment movements, which only one facing the roller. 55 spherical roller bearings can accommodate. On the drive side of these known rollers, the object of the invention is to provide a simple and a three-ring roller bearing is provided, which consists of the cheap lubricating device specified at the beginning to create an inner ring, a middle race and kind, with which in particular the inner one an outer ring and an inner and rolling element set of the three-ring rolling bearing are sufficient has an outer set of rolling elements, of which 60 are cooled and supplied with oil of suitable viscosity each usually two rows of rolling elements can be changed. grasps. The three-ring roller bearing is in a stationary position. The device according to the invention is therefore there- Housing housed and carries the axis in the characterized in that a opposite to the ring housing, on which the hollow cylinder is rotatably sealed between the hollow cylinder and the axle is. The middle race is on the hollow space between the inner ring and the middle The side facing the cylinder with this over a ge race of the three-ring roller bearing on the one hand over Suitable coupling connected and on the opposite - a subsequent cavity in the end part of the adjacent Side attached to a drive shaft, the drive shaft, at least one from the cavity