SU1004676A1 - Radial sliding-contact support - Google Patents

Description

(54) RADIAL RADIATION SUPPORT

one

The invention relates to mechanical engineering and can be used in bearings of rotation of parts of machines and devices, for example in supports of turbines of tachometric flow meters of fluids (liquid and gas).

Known radial bearing slip, containing a fixed holder, vrashayush, Uyus pin located inside the yoke, and elastic petals attached to the axle and touching yoke I.

However, the known support has insufficient bearing capacity. This is due to the fact that in most hydraulic and pneumatic mechanisms and support machines are located in the stagnant (non-flowing) zone of the fluid. At the same time, fluid layers located near the support, under the action of a rotating pin with petals, also acquire a rotational movement, as a result of which the interaction of the petals with the medium is reduced and the bearing capacity of the support is reduced.

The aim of the invention is to increase the bearing capacity of the support operating in the stagnant zone of the fluid.

This goal is achieved by the fact that in a known radial slide bearing.

containing a stationary holder, filled with working medium, and elastic petals, fixed on the shaft journal, the latter are installed at a sharp angle to the generator of the cylindrical surface of the journal. 5 FIG. 1 shows a radial bearing

slip; in fig. 2 shows section A-A in FIG. one.

The support includes a fixed outer cage 1, a rotating trunnion 2, located 10 inside the cage 1, and elastic petals 3 fixed along lines 4, located at an angle d to the generatrix 5 of the cylindrical surface 6 of the trunnion 2. The angle value can be within.

The support works as follows.

In the process of rotation of the trunnion 2, the elastic petals 3 overlap the fluid layers that fall between the outer race 1 and the petals 3. Moving relative to the indicated layers of the medium and pushing away from them 20, the petals 3 support the trunnion 2. Thus, the bearing capacity of the support is provided.

As the pin 2 rotates from the petals 3 when working in stagnant (stagnant)

The fluid zone also begins to rotate the layers of this medium located in the area of the support. Due to the rotation of the medium together with the trunnion 2 and the petals 3, the speed of the petals moving relative to the indicated layers of the medium decreases, the petals cease to repel the medium, and the bearing capacity of the support is not high enough.

However, securing the elastic petals 3 on the trunnion 2 along the lines 4 located at an angle ot to the generator of the cylindrical surface of the trunnion ensures the presence of a component of the interaction of the petals with the layers of the medium directed along the axis of the trunnion. In this case, there is a continuous rejection of the rotating fluid layers from the petals and the flow of new, non-rotating layers to the nkm. Due to this, the speed of moving the petals with respect to the fluid layers increases, the force of repulsion of the petals from these

layers and bearing capacity is increased.

The increased bearing capacity of the support expands the area of its application, improves the operational characteristics of the machines in terms of the reliability and durability of their work.

Claims (1)

Invention Formula A radial slide bearing containing a stationary holder filled with a working medium, a shaft journal and elastic petals fixed on a trunnion, characterized in that, in order to increase the bearing capacity of the bearing, the elastic petals are fixed at an acute angle to the forming cylindrical surface of the trunnion. Sources of information taken into account in the examination 1. US patent number 3951474, cl. 308-9, 1976 (prototype). A-A