WO2019231418A2

WO2019231418A2 - A multi layered bearing

Info

Publication number: WO2019231418A2
Application number: PCT/TR2018/050898
Authority: WO
Inventors: Rahman SIMSEK
Original assignee: SIMSEK, Senay
Priority date: 2017-12-27
Filing date: 2018-12-26
Publication date: 2019-12-05
Also published as: WO2019231418A3; TR201722212A2

Abstract

The invention related to a multi/layered radial and axial bearing which works under the influence of the radial and axial forces, that transmits the force between the rolling elements and the inner and outer ring contact surfaces, to the rolling elements and to the journal through the inner and the outer ring or roller bearing on the body, which have a larger cross-section and the surface contact area.

Description

A MULTI-LAYERED BEARING

TECHNICAL FIELD

The invention related to a multi-layered radial and axial bearing, which works under the influence of the radial and axial forces, that transmits the force between the rolling elements and the inner and outer ring contact surfaces, to the rolling elements and to the journal through the inner and the outer ring or roller bearing on the body, which have a larger cross-section and the surface contact area.

PRIOR ART

Bearings are mainly used for bearing rotational and force-transmitting machine parts. Bearings are expected to perform the bearing task with minimum friction. The difference of the roller bearings from the sliding bearings is the low friction forces. With these feature, the energy spent on friction is kept at minimum levels.

The structure of the bearings consists of rolling elements (balls and rollers), inner and outer rings, and a cage that holds the rolling elements in an arrangement. Bearings operate under the influence of radial, axial or dynamic loads. They are called radial and axial bearings according to the loads they are exposed to and are called ball and roller bearings according to the types of rolling elements. The radial bearings meet the forces from the radial direction and the axial bearings meet the forces from the axial direction. Bearings can operate under the influence of both radial and axial loads (dynamic load). Rollers of rolling elements may have cross sections in different geometrical shapes. The inner and outer ring contact surfaces to the roller must be machined according to the geometrical shape of the roller. Rolling elements can be arranged as single and double rows. Lubrication process is done with grease or oil. Most of the bearings are manufactured in a way that cannot be removed and maintained. LIST OF FIGURES

Figure 1. Outer Ring of the Multi-layered Bearing

Figure2. Outer Ring of the Multi-layered Bearing

Figure 3. Section View of the Outer Ring of the Multi-layered Bearing

Figure4. Front View of the Outer Ring of the Multi-layered Bearing Figure 5. Side View of the Inner Ring of the Multi-layered Bearing Figure6. Inner Ring of the Multi-layered Bearing

Figure 7. Front View of the Inner Ring of the Multi-layered Bearing

Figure8. Rolling Element

Figure9. Rolling Element

Figure 10. Exploded View of the Multi-layered Bearing

Equivalents of the numbers which are given in the figures:

1 - Inner Ring

2- Outer Ring

3- Rolling Element

4- Lubricating Holes of the Outer Ring

5- Lock Segment of the Outer Ring

6- Safety Segment

DETAILED DESCRIPTION OF THE INVENTION

The most common breakdown in bearings is the dispersion of the rolling elements. The biggest cause of this breakdown is that it remains oil-free and / or that the stress on the ball or pulley is high. To reduce this stress per ball or pulley, increasing the number of rolling elements (3), while increasing the number of floors between the inner ring (1 ) and the outer rings (2) will be the solution. The load on the bearing will be divided through the inner ring (1 ) and the outer ring (2) wings (layers) (in proportion to the contact surface areas and sections of the rolling elements in the layers). The load distribution will reduce the load per rolling element (3) while extending the bearing life. While the load carrying capacity is improved by the multi- layered bearing structure, the work of sliding bearings is also done. As the number of rolling elements (3) increases in multi-layered bearings, greater friction and heat will occur during operation. The problem of friction and heat is solved by a good lubrication and cooling process.

In the bearing models mentioned in the prior art, there is a point contact to the inner and outer rings in bearings with ball elements and a linear contact in bearings with pulley elements. In linear and point contact, the crushing pressure is very high. This high pressure disrupts the rolling element bearing in the inner and outer rings over time. This problem has been overcome with the multi-layered bearings. The multi-layered bearings mentioned in our invention comprises at least two layers of inner ring (1 ) and the outer ring (2) arranged on top of each other. The inner ring (1 ) and the outer rings (2) can be manufactured in one piece or in multiple parts. The outer ring (2) is formed of two parts and is removable. As it is removable, it provides ease of installation and maintenance. In the figures, the outer ring (2) parts are connected with a locking segment (5) in a way which it can be removed.

The multi-layered bearings are both axial and radial types, such as existing bearings, and they can use all of the rolling elements (3) having the same cross- section types.

In the multi-layered bearings, the bearings of the inner ring (1 ) and the outer ring (2) with the rolling elements (3) can be machined in different gear, wheel-tooth profiles. With the use of gear wheel forms in the multi-layered bearings, larger contact surfaces are obtained, while the crushing pressure is reduced and larger dynamic loads (radial and axial) can be carried. When needed, the rolling elements (3) with multi-row can be used in the multi-layered bearings.

In use, working conditions and load conditions will change the multi-layered bearing structure. At the point where the outer ring (2) joins the inner ring (1 ) on the hub, the outer ring (2) is secured on the inner ring (1 ) by the safety segments (6). Because if the outer ring (2) tends to flex due to the load, the safety segment (6) will prevent it.

Claims

1. A multi-layered bearing characterized in that comprising at least two layers to share the load and extend the lifetime of the bearing and an inner ring (1 ) and an outer ring (2) which have surfaces that a rolling element (3) can be placed in.

2. The surface of the inner ring (1 ) of Claim 1 characterized in that being in gear wheel form to obtain larger contact surfaces, to reduce crushing pressure and to able to carry larger dynamic loads (radial and axial).

3. The surface of the outer ring (2) of Claim 1 characterized in that being removable and in gear wheel form to obtain larger contact surfaces, to reduce crushing pressure and to able to carry larger dynamic loads (radial and axial).

4. The multi-layered bearing of Claim 1 characterized in that comprising a safety segment (6) at the point where the outer ring (2) joins the inner ring (1 ) that prevents the tendency of flexing due to the load.