DE1867248U - SEAL, IN PARTICULAR FOR CARRYING ROLLERS OF CONVEYORS, ROLLERS AND WHEELS. - Google Patents

Description

RA.754161-27.1U2

PALATINATE PRESSSTOFFWERKE
Gustav Foos & CIe. K.- G.

Speyer on the Rhine

Seal, especially for conveyor rollers, rollers and wheels.

In technology, the labyrinth seal has been able to establish itself especially in the construction of support rollers for conveyors, because it is simple in its overall structure and also easy to maintain. - The maze seals will be mostly from drawn sheet metal parts, occasionally also in the casting process or made of plastics. - For sealing against the penetration of water, moisture or The labyrinth seals are usually filled with stiff grease to prevent foreign bodies from getting harder and harder over time so that they no longer serve their purpose. The consequence of this is that, despite suitable structural measures, water, moisture cthe foreign body can penetrate through the air gaps of the labyrinth and within a short time the built-in Damage or even destroy bearings, which leads to failure.

The construction described below seeks through. link of preferably elastic radial clearings with the labyrinth seal avoid the disadvantages described above.

Fig. 1 of the drawing shows a bearing body (1) into which a labyrinth ring (2) is pressed, during the Labyrinth counter ring (3) is pushed firmly onto the shaft (4), where it prevents axial and radial displacement is expediently seized. In a correspondingly shaped recess in the labyrinth ring (2) is a Radial sealing ring (shaft seal) (6) of known design is used with any sealing lip shape. The sealing lips of the radial sealing ring (6) slide on the outer axial surface of the labyrinth counter-ring (3) and seal the inevitable air gaps of the labyrinth in the axial and radial direction.

page 2

Fig. 2 of the drawing shows that instead of the radial sealing ring (6) and sealing rings with a circular (7) rectangular (8) or any cross-section can be used. With a rectangular cross-section of the radial sealing ring is expediently the Bättyriath ring (2) divided and a corresponding retaining ring (5) gate the labyrinth ring (2) set. About this can For further protection against foreign objects of any kind, a protective cover (9) can be slipped over.

The construction described above makes it possible to use greases instead of rigid greases for sealing purposes to use those of a softer consistency or even oils. Furthermore, there is a guarantee that the camp is now at a possibly premature wear of the radial sealing ring remains protected for a certain time and the lifetime the conveyor roller respectively. Roller or the wheel is extended ".

Claims (4)

Sheet 3 Expectations Ί.) Seal for support rollers, rollers and baths thereby characterized in that in the labyrinth ring (2) a radial sealing ring (6) of known design with any Sealing lip shape is used, the sealing lips of which on the outer axial surface of the labyrinth counter ring (3) slide and seal in radial and axial directions. 2.) Seal for support rollers, rollers and wheels, characterized in that in the labyrinth - ring (2) Sealing rings with circular (7), rectangular (8) or any cross-section can be used and a seal in the radial and axial directions when sliding on the outer axial surface of the labyrinth counter ring (3) achieve. 3.) seal for support rollers, rollers and wheels according to claim i and 2, characterized in that in front of the Laby- » rinth ring (2) a retaining ring (5) can be placed, the cross-section of which corresponds to the radial sealing ring is adapted. 4.) seal for support rollers, rollers and wheels according to claim 1; 2 and 3 characterized in that before the Labyrinth ring (2) a protective cover (9) is placed, which is also fixed with the retaining ring (5) can be connected.