PL86921B1 - - Google Patents

Description

The present invention relates to a hydrostatic bearing tic equipped with carriers and chambers steering radial bearings and nose chamber on and control chamber of the axial bearing, and moreover, a discharge oil restrictor fitted with an oil collecting chamber connected to the tank drain holes, circumferentially sealed a seal, in particular for a profile bearing the shafts of the sets of machines are processed Rek and other machines and devices.

The previously known hydrostatic bearings are like this constructed with the regulating throttles fixed or set They are separate or controlled elements structural bearings.

The disadvantage of these solutions is that they apply control throttles as separate elements construction, expands the bearing and on the technologies of its implementation. At the same time for Wikis constantly - capillary have the disadvantage that they are tender to fouling and clogging by impurities in oil.

There are also known solutions for hydrostatic bearings are equipped with glands in the form of slots formed by moving surfaces relative motion with respect to each other self-cleaning of the throttle.

The disadvantage of these solutions is complex and complicated important design difficult to make.

Furthermore, hydrostatic bearings are known fitted with oil seals w the form of labyrinths, various types of seals, hens air and other plasters. However, the downside to these the solution is that they expand the structures and do not always work effectively, and moreover, in when using air curtains, it is required the use of additional devices for the addition of a cluster of compressors.

The object of the invention is to avoid disadvantages and shortcomings of known hydrostatic bearings, and the technical task of developing the bearing, which would constitute a separate team equipped with all design elements ensuring its correct work and devoid of any separate supply chokes.

This goal was achieved by the development of the lo¬ will gain hydrostatic equipped with chambers bearings and control chambers of the radial bearing and a bearing box and a bearing control box axial and in addition a discharge oil restrictor equipped with a combined oil collecting chamber with drain tank, openings, sealing a circumferential gasket especially for a boat radial and axial profitability of the shafts machine tool fields and other machines and devices, in which its thrust bearing is formed through the carrying chamber located in the body combined with a ring shaped gland through the gap between the roller and the hole in the bark the fluff between the edges and the outflow shaft slot from the bearing chamber of the axial bearing 86 9213 it is contained between the edges and the seal it is shaped as a gap between the cylinders and the opening in the body between the edges, throttling the oil flowing into the seal chamber with a seal enabling oil flow from the drainage chamber through holes drains and leakage of communication oil the drain hole, the edges limiting individual chambers and throttles are located on one cylindrical surface.

The technical advantage of the hydrostatic wedge bearing The advantage of the invention is that it is used special throttling of oil leaking from the wheel drainage drainage and plastic gaskets plastic material is simple in construction not a reliable way of sealing the ice gains in making the performance of the bearing are immeasurable not easy due to the fact that all the happiness gland ropes and outflow slots radial rock and choke slots drainage from the oil drainage chamber is present between the same rolling surfaces jL- mi, moreover, they enable the formation of compact consoles structurally and technologically simple, as well hydrostatic bearings that are reliable in operation all. ~~ A bearing according to the invention is shown in the embodiment example in the drawing in which FIG. 1 shows the hydrostatic bearing in the transition longitudinal cut along the axis, fig. 2 - sectional view transverse hydrostatic bearing along the line A-A in Fig. And showing its steep chambers 3 shows a cross section of a hydraulic bearing drostatic along the line B-B in Fig. 1 curve for its carrying chambers, fig. 4 - design The cutting of the hydrostatic bearing bushing shows which connection of the control chambers by means of a communicator niche canals with nasal chambers, and Fig. 5 - the second example of a hydrostatic bearing with the system metrically positioned lifting chambers and chambers control morami.

The hydrostatic bearing according to the invention is graded it is possible from the body in the form of a flanged sleeve 3 embedded in a ring-shaped sleeve 29 located on combat 2.

Flanged sleeve 3 on the outer cylindrical its surface is provided with a ring chamber 1 connected via channels 31 to the power supply ring oil under pressure Q rolling 30 in sleeve 29 and segmented ring the control chambers 11, 12, 13 and 14 are located in the plane of the cross-section along lines A-A in Fig. 2 and segmented ring the support chambers 19, 20, 21, 22 are situated in the mantle the cross-section along the line B ^ B in FIG. 3. Moreover, the sleeve 3 is provided with floating chamber 23 connected to the drain opening 24 and connected with the communication sealing chamber 27 with a seated opening 28 sealing ring 32 inside lid closed from the outside, as well as a carrier chamber 6 limited by controlling edges 7 Inside the sleeve 3, the control chamber ribs and carrying chambers are limited by the 16 921 4 mi 4, 5, 9 and 10 and edges 25, 26 and 34, 35 as steering edges or for more.

The second example of the bearing structure according to The invention shown in Fig. 5 differs from the description of the above solution in that it is deprived of the thrust bearing is equipped with additional set of identical runners and steering radial bearings-.

The technical advantage of using identical loops gain placed symmetrically on the other end the rolling shaft is portable axial forces acting in both directions.

The operation of a hydrostatic bearing is as follows pujace: brought under pressure to the ring oil chamber through the inlet choke an axial gain formed by a circumferential wedge hQ lines between roller 2 and body 3 delim bound by edges 4 and 5 gets into the breast- the bearing chamber 6 of the axial bearing, from which the oil through the outflow gap ht included between edges 7 and 8, it flows out.

Depending on the size of the gaps ho and ht in the carrier chamber 6 builds up a certain pressure which acting on the surface of the bearing roller 2 transfers the axial force Pw in the direction of carrying chamber 6.

From chamber 1, oil also flows through the jaw the line between the body 3 and the roller 2 is 31 between edges 9 4 10 for control chambers 11, 12, 13 and 14. Each control chamber is connected channel 15, 16, 17 and 18 from the opposite chamber 19, 20, 21 and 22 radial bearing, thanks what is the pressure in each control chamber same as in corresponding ventral chamber on the side of the bearing element.

Then from the bearing chambers radially where the oil enters the drainage chamber 23 and then opening 24 is facing the side 40 ebb. Some of the oil seeps through the jaws a line between edges 25 and 26 to the opening of the floating chamber 27, with openings 28 sides is vented, with chamber 27 closed there is a gasket at the edge. 32. 45 In the case of the central position, fight 2 a circumferential gap relative to the opening in the body on hQ is the same. If under the influence of force external After acting on walels 2 will follow displacements fight for Ah lower gap takeoff 50 hQ — Ah, while the upper slot hQ + Ah, po consequently causing greater throttling of the oil already flowing into chamber 13 and simultaneously less throttling of oil flowing into the chamber ry 11. 55 Throttling of the oil flowing from the carrier chamber the figure 21 will be smaller and the oil choke will flow out wajacego from the carrier 19 x, arise the whole difference of pressures in opposite chambers load-bearing balances; strength of Pp. Connecting channels 15, 60 16, 17 and 18 made in the body 3 are closed ring 29, in which the ring is located shadow groove 30 to which is linked supply oil, connected by hole 31 from chamber 1.

A hydrostatic bearing according to the invention may whether to be used for radial bearing 86 921 an element with rotational or axial movement of shafts groups of machine tools and other machines and devices day.

Claims (3)

Patent claims 1. A hydrostatic bearing equipped with load-bearing chambers and control chambers of the radial bearing, as well as a bearing chamber and an axial bearing control chamber, and a discharge oil restrictor provided with an oil collecting chamber connected to the drain tank with holes sealed on on its circumference, a seal, in particular for the radial and axial bearing of the shafts of machine tools and other machines and devices, characterized in that its longitudinal bearing is formed by a bearing chamber <6) located in the body (3) connected to a ring-shaped ring formed through the gap between the roller (2) and the bore in the body (3) between the edges (4) and (5), while the outflow of the gap (ht) from the bearing chamber (6) of the axial bearing is contained between the edges (7) and (8), and the seal is shaped as a gap between the shaft (2) and the opening in the body (3) between the edges (25) and (26), which allows the oil flowing to the sealing 10 15 20 chamber (27) provided with a gasket (32) enabling the flow of oil from the drain chamber (23) through drain holes (24) and oil leakage through the communication hole (28) for the drain, the edges delimiting the individual chambers and glands they are situated on one cylindrical surface. 2. Bearing according to claim 1, characterized in that its bushing (3) is provided with connecting channels (15), (16), (17), (18), connecting the main chambers (19), (20), (21), (22). ) with control chambers (11), (12), (13), (14) shaped as planes perpendicular and parallel to the axis of the bearing bore, and the sleeve (29) is closed from the outside. 3. A hydrostatic bearing equipped with load-bearing chambers and control chambers of the radial bearing, and in addition, an outflow throttle provided with an oil collecting chamber connected to the outflow tank with holes, sealed around the circumference with seals in particular for the radial bearing of the shafts of the roller sets. Machines and other machines and devices, characterized in that the sleeve (3) is equipped with supporting chambers (19), (20), (21), (22) and control chambers (11), (12), ( 13) and (14) radial bearings located symmetrically on both sides of the annular supply chamber (1), Fig-2. Rg.3. 6 ^ A 1 9 1011 n 34 35 23. 13 2 \ 25 26 Rg.t.86 921 33 17 33 18 11 33 U 33 U 33 n 33 23 32 1— \> 11 ^, \\\ n \ M. --IZ 19 11 1 _} and 19 PLN 13 13 21 * LWgff Fig.!) UW //// ^ za ^ and BLtk 2243/77 r. 130 copies A4 Price PLN 10