SU1337566A1 - Insert for plane bearing with recess - Google Patents

Abstract

The invention relates to mechanical engineering and can be used in turret-type sliding bearings and high-power electric motors. The aim of the invention is to increase the holding capacity and reduce the consumption of lubricant. The working surface of the upper half-sack is made of two parts in an pocket with an oval contour, one of which is made in the form of a self-adjusting one, which is spring loaded. In the lower half liner, the supporting working surface is made with oval inlet and outlet edges. The channels for supplying lubricant at the exit to the working surfaces are made perereshivayuschimis imis and tangentially to the working surfaces. The invention allows to prevent the heating of the lubricant outside the oil layers, their wedges, to reduce energy consumption, the consumption of lubricant, to increase the drying capacity. 2 Il. Stock Oi 05

Description

The invention relates to mechanical engineering and can be used in sliding bearings of turbine units, high-power electric motors, as well as in single-sided rotating machines.

The aim of the invention is to increase the carrying capacity and reduce the consumption of lubricant.

FIG. 1 shows the input of the socket in the diametral plane, a section; in fig. 2 sweep liner.

The insert node with a single bore contains lower 1 and upper 2 semi-bridges. The semi-flap 1 has pockets 3 and 4 extending to the joints, connected by channels for draining lubricant to ei o tori, an oval bearing surface 5 for the shaft and bead 6 and 7, functioning as gap seals. Support surfaces 5 and boards 6 and 7 are covered with additional facing, for example, B-83 babbit. In the front (inlet) direction of rotation of the part of the reference surface, 5 butter sides are provided with oil distribution arc grooves 8 and 9, each connected via a throttle and reverse clan to the hydrostatic lubrication system (not shown). In the same place, on the middle line of the flow area, the mouths of the channels 10 and 11 of the lubrication supply system, the walls of which are adjacent tangentially to the supporting surface 5, whose axes are mutually non-linear, are inclined at an angle of 30 °. The front part of the supporting surface 5 has an arc simpleness of magnitude, panrimer, 60 ° from the vertical axial nloskie, and the back part of the supporting surface 5 has an arc nothness of vertical axial nloscopicity, for example, 30. The upper nollow folding 2 has a pocket 12, boards 13 and 14 and the front surface 15, ovally in the nlan and outside adjacent to the sides 13 and 14. The sides 13 and 14 and the supporting surface 15 are covered with grinding. The reference surface 15 times the MCHiena in the front part of the rotation of the half-insert 2 at a distance of, for example, 10 ° from the joint and has an arc looseness great, panrimer, up to 60 °. On the front but on the side of the VSP1SPI (parts of the surface of the supporting bottom 15 w are located the mouth of the channel 16 and 17 of the lubricant supply system, the walls of which are nrpm4 ak) and tangent, and axially intersecting each other by angle, 30 °. In the back half of the map | 1м1 and 12 it is connected with the help of the spring 18 self-installing from the trunk;), it is matched in the plan and, for example, is equal to u: i () |) iK) i of the surface 15. On the front of its HoiicpxHocTH there are mouths of channels 20 and 21 of the lubrication nodal system, the walls of which are adjacent tangentially to the bearing surface, and whose axes are mutually mismatch1, endes under, nairpn.Mep, 30 °. Nodong 0

19 is placed at a distance of 10 ° from the joint and has an arc length of, for example, up to 60 °.

The arc distance between the lower and the lateral support surfaces provides an optimal discharge of the heated heat exchanger and cooling of the shaft surface in case of need.

Nodn ipnik operates as follows.

0 First, turn on the pump of the operating lubricant supply system, then the pump of the hydrostatic lubrication system. When “ascending, the shaft will close to the top-fixed and movable workers covered with working grease

5 new surface. M. When untwisting and the nominal shaft lamination frequency, lubricant flows into each working surface through two drops from the tangippialo by the walls adjacent to it and with mutually untreated axes, which ensures, due to the presence of multiply e (1: | |, lubrication of the lubricant along the shaft surface In this case, a hydrodynamic bearing wedge and an increased thrusting into the insert will arise on all the bearing surfaces, connecting the body and the body to the shaft, in the intervals between the bearing surfaces. the smear flies off from Ba; ia. Another part of the lubricant is removed from the shaft by the front non-rounded edges of the Hornix surfaces.When the shaft rotates and its diameter increases, the shaft surface radiates a radial shift towards the spring-loaded nodushchki By appropriately increasing the vibration resistance of the liner, without jamming, the lower support layer takes up a load of 110 ° / o vertical load from the shaft, the side entrance surface of the surface perceives a load of 10-16 ° / o load from Ba.ria, the side output support above post - load from the shaft.

Thus, the proposed isgyulzovanie VC; 1adpna obesnechivaet nredotvra- 1n.spie turbulizapii and naked roar oily lubricant is nesu1tsih wedges, increasing the dynamic communication vibrating shaft 1 and the armature kladppem | whisker podshippika with corresponding vibratory umenn1eniem raz.maha rapii shaft, (mggimization of pressure diagrams in a small nonsupgem clip by mimizing the magnitude of the area of the annular surface of the enamel volume with reduced temperatures (y, full use of injected working lubricant in oil n1; 1x wedges x, pushing oily smears wedges, improved cooling of the shaft in the gaps noverhnosti

5 between the support surfaces with the four-unit sliding backrest, the practical preservation of the operating life of the traditional contribution due to

five

0

adding only an auxiliary self-aligning cushion, reducing the power consumption of the liner by 40-63%, reducing the lubricant consumption by 25-40% with a corresponding decrease in the oil system, increasing the specific load, its bearing capacity by 25-40% due to improvement of shaft cooling, reduction of the volume of deficit babbit by 40-63% / o, reduction in cost in comparison with four- and three-pillow bushings for sliding bearings.

Claims (1)

The invention of the insert for sliding bearing with lemon boring, containing lower 15 barrel surfaces. Research institutes and the upper half-liners with pockets and channels for the supply and discharge of lubricant, characterized in that, in order to increase the carrying capacity and reduce the consumption of lubricant, the working surface of the upper half-liner is made of two parts in an pocket with an oval contour, one of which is in the form of a self-priming spring-loaded cushion, and in the lower half-liner the supporting working surface is made with oval inlet and outlet edges; crossing and tangential to the FIG I 20 19 15