DE2253020A1 - CLAMPING ROLLER FREE WHEEL WITH ROLLER BEARING - Google Patents

Description

FRI23) RJC! HSHAFEN Aktiengesellschaft Friedyichshafen

Pinch roller freewheel with roller bearings

The invention relates to a roller freewheel with Roller bearing »

The known clamping roller freewheels have an outer ring or inner ring with milled clamping tracks. The production of these profiled rings is very complex. Further require these freewheeling springs to keep the Ilemmrolle in the Clamp angle to press & en »A« c & is a with these freewheels evenly pressing on all pinch rollers with certainty given «

It is the object of the present invention to make the production of small roll freewheels economical, a largely even pressure of all pinch rollers to achieve as well as a high level of positional accuracy and simple To achieve assembly «

The solution to this problem is that the outer ring and the inner ring have cylindrical roller tracks, that in the roller path of the inner ring a groove is cut to form a clamping path, that clamping body is arranged in the groove are and that cylindrical pinch rollers are arranged between the outer ring and the clamping pieces.

As far as the greatest value was placed on evenly pressing all pinch rollers and on high running accuracy as roller bearings the pinch rollers are held in a cage.

If value is placed on good lateral guidance, the roller bearing tracks are in the outer ring and in the inner ring pierced, so that lateral rims are created.

For the purpose of economic production, the clamping bodies are either extruded profiles with a corresponding Profile cut off or made of sintered metal.

The proposed clamping roller freewheel is characterized by a simple structure compared to the freewheels previously supported the end. Since all roles are forcibly pressed onto the clamping track, all roles also come into play when the otherwise required spring suspension. The port case of profile milling contributes to a large extent to the cheaper freewheeling it.

409819/0093

Finally, with the proposed roller freewheel, a high level of bearing accuracy is achieved as well as simple assembly,

Another Yorteil of the proposed clamping freewheel is that by reversing the clamping body by 180 °, a clamping direction reversal is achieved.

The drawing shows an embodiment of the clamping roller freewheel, namely show:

Fig. 1 is a partial cross-section through the pinch roller freewheel along the line I-I in Pig. 2,

Fig. 2 is a section along the line II-II in Pig. I.

In the drawing, the outer ring is marked with 1, the inner ring with 2 ". A groove is cut into the inner ring 2 to form the clamping track 5. The remaining peripheral parts to the right and left of the groove form the roller path 4 of the inner ring. In the groove 5, the clamping bodies 6 are arranged, which of an extruded profile corresponding cross-section in required Width can be separated .. In addition, these clamping bodies 6 can also be made as sintered metal parts will. Between the roller track 4 of the inner ring 2 and the roller track 3 of the outer ring 1, cylindrical rollers 7 are arranged. The rollers 7 can be arranged in a cage 10.

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To transmit axial forces, the roller track 3 can be in the outer ring 1 and the runway 4 can be cut into the inner ring 2, the run-up rims 8 and 9, respectively, being formed.

The clamping direction of this freewheel is opposite to that in the drawing with the outer ring stationary Directed clockwise. In this direction of rotation, all of the rollers 7 move on the outer roller track 3 as a result of their friction and the inner runway 4 or through the cage 10 on the slope of the clamping body 6. In the latter case, the clamping body 7 pressed onto the clamping track 5 by the rollers.

When the freewheel moves clockwise, the rollers 7 run on the runway 3 of the outer ring 1 and the runway 4 of the inner ring 2 and act as a roller bearing. If the runways 3 and 4 in the outer ring 1 or inner ring 2 are incised, axial forces can be transmitted via the stop rims 8 and 9. The clamping bodies 6 are of the Rollers 7 are carried along and lift off from the clamping track 5 under the action of centrifugal force.

October 27, 1972

Very / Bl ^ yA Act 5115

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Claims (1)

* 2253Q20 Pal en tee ep? Tfih β: λ Clamping roller freewheel with roller bearing, dadureia marked, that the outer ring (1) and the inner thing (2) have cylindrical roller tracks (3j 4) that in the roller ■ bann (4) of the inner ring a! Tut to form a clamping "bato- (5) Is centered that in the Jiut clamping body (6) are arranged between the outer ring (1) the eleiffia pieces? ylindrisolie rollers (7) are arranged, 2, ElemiD roller freewheel with roller bearings according to. Claim. 1, characterized in that the clamping rollers (7) a cage (10) is arranged, 5, clamping roller freewheel according to claim. 1 or according to the claims 1 and 2, characterized in that the roller blades (3, 4) are inserted into the outer ring (1) and the inner ring (2), 4 «clamping roller freewheel according to claims 1" or 1 and 2, thereby characterized in that the clamping bodies (6) are sections of an extruded profile « 5. Clamping roller freewheel according to claims 1 or, 1 and 2, characterized in that the clamping bodies (6) are made as sintered metal parts. October 27, 1972 Very / Bl file 5115 409819/0093 Blank page