CS244599B1 - Axial hydrostatic converter's tilting plate rolling seating - Google Patents

Abstract

The invention relates to a rolling arrangement swinging thatch, axial hydrostatic swivel plate converter through rolling bodies and pan in non-moving cradle. The essence of the solution lies v toan that the radius of the rolling surface swivels thatch, weighted by the diameter of the rolling element it is larger than the inner radius of the pan, whose outer radius is smaller than the storage one cradle radius.

Description

The invention relates to a rolling bearing arrangement for an axial hydrostatic transducer.

In the known arrangements of the rolling arrangement of the swinging thatch, the rolling radius of the swinging thatch is smaller than the rolling radius of the cradle, reduced by the diameter of the rolling elements which are mounted between the two parts, thereby creating a radial clearance in the bearing.

Since the resulting loading force on the pivotable thatch from the spaces changes the position with a frequency equal to twice the number of pistons and the converter speed relative to the geometric center of the roller bearing, the reaction position of this force in the roller bearing changes. through rolling elements into the cradle and cabinet. This externally results in vibrations and noise and has an adverse effect on the service life of the roller bearing and some parts attached to the pivot plate. In order to reduce the magnitude of these shocks and vibrations, a rolling bearing with reduced radial radial vibration is performed, which requires increased demands on manufacturing accuracy. Another known embodiment is provided in that the pivot plate is a cylindrical surface mounted on a sliding plate of a linear rolling bearing. This design is characterized by its larger installation dimensions and reduced load capacity.

The aforementioned disadvantages are eliminated by the rolling bearing of the axial hydrostatic transducer of the axial hydrostatic transducer with the pivoting plate mounted over the rolling elements and the ladle in a stationary cradle, the principle being that the rolling radius of the rolling thatch the radius is smaller than the cradle storage radius.

An advantage of the rolling bearing arrangement according to the invention is the elimination of the shocks transmitted from the pivoted thatch through the rolling elements to the cradle, thereby reducing the noise of the converter and increasing the service life of some of its parts without increasing the accuracy of the rolling bearing parts.

An embodiment of a rolling bearing according to the invention is shown in the accompanying drawings, in which: FIG. 1 is a schematic view of a rolling bearing and FIG. 2 shows a view of the barrel parts of the roller bearing.

The pivot plate 1, with its rolling surface 11 of radius R 1, is supported on rolling elements 2 having a diameter d and the most common roller shape. The rolling elements 2 are guided along the inner radius R2 of the ladle 3, which is supported by the outer radius R3 in the cradle 4, which is formed as a separate part or may be part of the housing or the cover of the converter. The position of the ladle 3 relative to the cradle 4 is secured, for example, by a pin

5th

When converting the rolling bearing according to the invention, when the sum of the radius R 1 of the rolling surface 11 and the diameter d of the rolling element 2 is greater than the inner radius R 2 of the ladle 3, the rolling bodies 2 are mounted between the pivot plate 1 and the ladle 3. When the swinging thatch 1 is pulled by the resulting force F from the pistons 6, the ladle 3 resiliently deforms such that all the rolling elements 2 are in contact with the swinging plate 1 and the ladle 3, which is supported by the outer radius R3 4 with radial steer. Changing the position of the resulting load force F relative to the geometric center of the rolling bearing S by x, which results from the kinematic principle of the transducer, does not transmit shocks through the rolling elements 2 since they are in constant contact with the pivot plate 1 of the radial clearance between the ladle 3 there is a continuous change of position by rolling between these parts, the amplitude of this movement being attenuated by the liquid viscous film present between these parts. In this way, the same proportions are achieved in terms of force transmission F from the pivoted thatch 1 to the cradle 4 as with the sliding bearing, but the rolling bearing retains the advantages of low passive resistances.

Claims (2)

Rolling bearing of an axial hydrostatic transducer that has a pivoting plate supported by a rolling element and a ladle in a fixed cradle, characterized in that the pivoting plate (1) has a radius YNALEZU (Ri) of the rolling surface [11], increased by the diameter (d) of the rolling element (2), greater than the inner radius (R2) of the ladle (3), whose outer radius (R5) is smaller than the bearing radius (R4) (4).