DE1714681U - PROTECTIVE DEVICE FOR JOINT. - Google Patents

Description

Utility model registration

"Protective device for cardan shafts, especially on agricultural machines"

Sch 12 O16 / 63c Gm

Applicant: Kurt Schröter, Kerkenrath Ij. Berg.-Gla & bach company Jean V / Alterscheid, Siegburg-Eheinland

The invention "relates to a protective device for cardan shafts, especially on agricultural machines. In those cases where the protective device is not on both The ends of the cardan shaft can be connected to a fixed machine part, known protective devices cannot be used apply without further ado. According to the invention, a part of the telescopically adjustable protective tube is preferably through a roller bearing mounted on the rotating shaft that is to be protected and against rotation on the other pipe part secured. Preferably, the seams of welded pipes are formed so that they are on the inside a groove on the outer tube and one on the outside on the inner stirrer Form elevation that can slide in the groove. According to a further feature of the invention, the roller bearing can with his Inner or outer ring must be elastically resiliently supported in order to prevent damage to the bearing, if due to the rough Agricultural machinery operation, bending of the protective tube or the shaft can occur. For this purpose a sleeve made from Buna or be used similar material. For the lateral sealing of the rolling bearing, according to the invention, elastic flexible, for example bunas, which are inserted with preload. It is also within the scope of the invention to design one end of the protective tube over the joint in a funnel shape and the funnel made of elastically deformable material, for example Perbunan. Such a trained one

Funnel can resiliently handle the large external articulations of the joint, which practically only occur when the shaft is at a standstill yield and therefore relatively small in diameter »or sufficiently long» a · Haoh of the invention, both ends or both protective tube parts can also be mounted on the rotating shaft in the manner described above by roller bearings, namely before » preferably »when it is not possible to use part of the To screw telescopic protective tube to a fixed machine part. Rotation of the protective device is prevented according to the invention in that a rod or the like hinged to a part of the protective device and connected to a fixed machine part or respectively is supported against it

The invention is shown in an exemplary embodiment in the drawing

Figure 1 shows a part of the cardan shaft with protective device partially la longitudinal section «

Figure 2 shows the telescopic sliding protective tube in cross section.

On one end 4 <* · β leadsIigsm of the cardan shaft is a part 13 of the two-part protective tube supported by a ball bearing 43 · The two parts 12 and 13 of the protective tube are » as can be seen in particular from the cross section in FIG. 2, secured against mutual rotation. Through one here Not shown support of the pipe part 12 against a fixed machine part is a co-rotation of the pipe parts 12, prevents between the inner ring of the ball bearing 43 and the shaft 4 soldered a bushing 42 made of Buna. Seitlloh the ball bearing 43 is glelohened by two washers 44 from the or similar material sealed with bias

Claims (7)

-J- are inserted against the retaining rings 45 and 45 * of the ball bearing. A funnel 41 is attached to the end piece 13 of the Sohutzrohrea, which is made of an elastically flexible material, for example Perbunan, and encloses the joint 5 to such an extent that effective protection against accidents is guaranteed When the shaft is at rest, there is flexion of the joint 5, the funnel 41 is able to yield elastically, so that damage is excluded. The funnel is attached to the tube part 13 through the screw caps 46, the funnel-shaped end piece 41 also forms the axial support of the outer retaining ring 45 * for the ball bearing 43 · The ball bearing can be supplied with grease via a lubricating nipple 47 · The elastic, funnel-shaped end piece 41 can be of any length. Protection claims t 1) Protection device for cardan shafts, especially on agricultural machines, characterized in that «in Part (13) of the telescopically nested protective tube A roller bearing (43) is mounted on the rotating shaft (4) and secured against rotation by being supported against a fixed machine part. 2) Protection device according to claim 1), characterized in that that it is mounted on the shaft (4) with the help of a roller bearing (43) « Part (13) of the protective tube against the other part (12) of the protective tube secured against rotation and the latter dureh Support against a fixed machine part is secured against rotation 3) Protection device according to claim 1), or 2), characterized in that d & ß both parts or both ends of the Schute * Device by rolling bearings mounted on the rotating shaft and by means of support against a fixed machine part Turning are secured 4) hat »gate direction according to claim 2) or 3)» characterized in that the seams are welded pipe part · on you The inside of the outer tube is designed as a hat and on the outside of the inner tube as an elevation that is longitudinally displaceable therein are. 5) Protection device according to claim 1) to 4) t, characterized in that the roller bearing (43) bit its inner or outer ring is elastically resilient. 6) Protection device according to claim 5) »characterized in that that between the shaft (4) and the inner ring of the bearing (#J) a Buna sleeve (42) is inserted 7) Protection device according to claim 1) to 6), characterized in that the ball bearing (43) is sealed off ^{by laterally arranged, pretensioned discs (44) made of resilient material in connection with retaining rings (45, 45 1).} 6) Protection device according to claim 1), characterized in that that the protective tube (13) is provided over the joint (5) with a triohter-shaped end piece made of elastically flexible material is.