Jean Walterscheid Gmbh

Gkn Walterscheid Gmbh

Jean Walterschied Gmbh

Paul Herchenbach

Horst Kretschmer

Martin Hector

Jurgen Vollmer

Mathias Konrad

Andreas Sarfert

Clemens Nienhaus

Klaus Kampf

Herbert Coenen

Hans-Jurgen Langen

Wilhelm Schott

Alfred Frackenpohl

Hermann Rugen

Hubert Geisthoff

Wolfgang Adamek

Karl Coenen

Eberhard Wilks

Norbert Muller

Hubert Grosse-Entrup

Hubert Grosse Entrup

Andreas Lohmüller

Markus Stommel

Uwe Bürling

Helmut Kamp

Ju Vollmer

Manfred Struck

A safety guard for a double universal joint () rotatingly arranged around an axis of rotation has a tubular protective cone (). The cone () has a connection mechanism to non-rotationally connect the protective cone () to a drive shaft guard of a shaft connected to the double universal joint (). A sliding ring () rotatingly supports the safety guard on the double universal joint (). It is non-rotationally connected to the protective cone (). An adaptor ring () is non-rotationally connected to the protective cone (). A boot () is non-rotationally connected to the adaptor ring (). The boot () has a connection mechanism to non-rotationally connect the boot () to a stationary component.

Safety guard for a double universal joint

A device for coupling a universal joint shaft to a power take-off shaft () of a tractor has a first coupling mechanism () that is non-rotatably arranged on the universal joint shaft. A second coupling mechanism () is non-rotatably arranged on the power take-off shaft () of the tractor. The first and second coupling mechanisms can be non-rotatably coupled to transmit torque. A coupling shield () is provided to couple the coupling mechanism (). The first coupling mechanism () is at least indirectly rotationally supported on the coupling shield (). A locking mechanism (') projects from the coupling shield (). A bracket () is attachable on the rear of the tractor. The bracket () has at least one locking device (&#x2032;) that is displaceable between an unlocked position and a locked position. The locking device (&#x2032;) is displaced from the unlocked position into the locked position. The locking device (&#x2032;) interacts with the locking members (&#x2032;) of the coupling shield () to pull it towards the bracket (). The first coupling mechanism () is transferred into a coupling position to couple it the second coupling mechanism ().

Device for coupling a universal joint shaft with a power take-off shaft of a tractor

A coupling device used for driving or in the drives of, agricultural implements or machinery, has a first universal joint () with a first outer yoke () a first inner yoke (), a second universal joint () with a second outer yoke () and a second inner yoke (). A connecting member () connects the first inner yoke () and the second inner yoke () to one another in a rotationally fast way. A first coupling element () is connected to the first outer yoke () in a rotationally fast way. A pressure spring () is axially supported against and pretensioned between a supporting element (), which forms part of the connecting member (), and the first coupling element (). A longitudinal adjusting member enables an axial displacement of the first coupling element () relative to the supporting element ().

Coupling device

A protection arrangement for a double universal joint () for drives of agricultural implements has a first protection element (), an annular second protection element () and a third protection element (). The first protection element () has first holding projections () circumferentially distributed on its outer circumference () close to the first front edge. The first holding projections () project beyond the outer circumference () and form at least over a circumferential edge portion, distanced to the first front edge, a groove. A support tab projects beyond the first front edge. The second protection element () has second holding projections () circumferentially distributed on its outer circumference close to the second front edge. The second holding projections () project beyond the outer circumference and form, at least over a first circumferential edge area close to the second front edge, a second groove. An undercut portion is formed over a second circumferential edge area distanced to the second front edge. The third protection element () has holding portions at both ends. The holding portions include a number of first through holes () or second through holes, respectively. The through holes engage the holding projections (), corresponding in number to the first holding projections () and second holding projections ().

Protection arrangement

A protection arrangement for a joint (), especially a double universal joint driving or in drives of agricultural devices and self-propelled implements, has a tube-like first protection element () with a first axial end () and a second axial end. At least the first axial end () is open. An attachment portion () is on the first axial end (). The first protection element () is supported on a first component () of the joint (). A second plastic protection element () is formed as a hollow body. The second protection element is open at both ends with an axially open first end portion () and an axially open second end portion (). An envelope portion () is formed between the first and second open end portions (). The envelope portion () has a lattice structure. The first end portion () is connectable to the attachment portion () of the first protection element (). The second end portion () connects to a connecting element (), which is supported on a second component () of the joint ().

Protection arrangement for a joint, especially a double universal joint

A centered double universal joint has a first outer joint yoke () with first centering means (), a first inner joint yoke (), a first cross member () connecting the first outer joint yoke () via rolling bearings () to the first inner joint yoke (), and a first lubricant channel () for lubricating the rolling bearing (). Also, the joint has a second outer joint yoke () with second centering mechanism (), a second inner joint yoke (), and a second cross member () connecting the second outer joint yoke via rolling bearings () to the second inner joint yoke (). A guiding disc () has a first central centering projection () articulatably connected to the first centering means (). The guiding disc has a second central centering projection () articulatably connected to the second centering means (). Guiding faces () on the guiding disc () are radially adjustably guided in an annular recess () of a housing (). The first lubricating channel () is connected to a first lubricant guiding mechanism () of the first centering mechanism (). The guiding disc () has a lubricant channel () which is connected to the first lubricant guiding mechanism () and ends in at least one of the guiding faces ().

Centered double universal joint

A centered double universal joint has a first outer joint yoke ( ) carrying a first cylindrical bearing journal ( ). A unit including a first bearing ball ( ) and a first bearing race ( ) are secured on the journal ( ). Via a cylindrical outer face ( ), first bearing race ( ), the unit is positioned in a bearing bore ( ) of a guiding projection ( ) of a guiding disc ( ). Accordingly, a surface to surface contact is achieved between the cylindrical outer face ( ) and the bearing bore ( ) as well as between the hollow spherical bore ( ) of the bearing race ( ) and the spherical outer face ( ) of the bearing ball ( ). The other outer joint yoke is provided with a similar bearing ball and a bearing race arrangement.

A centered double universal joint has a first outer joint yoke with first outer yoke arms connected to one another by a first bridge A first cenering mechanism is on the first bridge A first inner joint yoke couples with the first inner yoke arms. A first cross member connects the first outer yoke arms to the first inner yoke arms. The first cross member has a first lubricant supply A second outer joint yoke with second outer yoke arms are connected to one another by a second bridge Second centering mechanism is on the second bridge A second inner joint yoke couples with the second inner yoke arms. A second cross member connects the second outer yoke arms to the second inner yoke arms. The second cross member has a second lubricant supply A guiding disc defining a longitudinal axis has a first central centering projection articulatably connected to the first centering means Guiding faces on the guiding disc are guided in an annular recess of a housing The annular recess is delimited by a first sealing face and by a second sealing face A first lubricating groove in the first sealing face is connected to the first lubricant supply A second lubricating groove in the second sealing face is connected to the second lubricant supply

A protective device for a driving assembly with a double universal joint has a protective cone ( ) made of plastic. At a first axial end, the protective cone ( ) is secured to a bearing assembly ( ). At its second axial end ( ), the protective cone ( ) carries a guiding ring ( ). Folds ( ) are arranged between the axial ends. A hollow-spherical-zone-like inner bearing face ( ) of the guiding ring ( ) is arranged on a spherical outer bearing face ( ) of a bearing race ( ). A sliding ring ( ) in the bearing race ( ) is supported in a bearing groove ( ) of the double yoke ( ) of the double universal joint ( ). The guiding ring ( ) is pre-tensioned by the folds ( ) of the protective cone ( ) and thus held in contact with the outer bearing face ( ). The guiding ring ( ) can be removed from the bearing assembly, thus making components of the double universal joint accessible for maintenance purposes, such as lubrication.

Protective device for a drive assembly with a double universal joint

A bearing ring ( ) for supporting a protective device of a rotating driveshaft is adapted to engage an annular groove of a component of the driveshaft, for example a joint yoke. The bearing ring ( ) has a basic ring portion ( ) which connects to a component of the protective device. The bearing ring also includes a bearing ring portion ( ) which engages the annular groove. The bearing ring ( ) is a composite component. The basic ring portion is produced from a different type of plastics than the bearing portion. The bearing portion ( ) is produced by being injection molded around the basic ring portion ( ). The bearing portion ( ) is a PEEK material. Thus, the bearing portion ( ) achieves a long service life while the costs of the bearing remain acceptable.

Bearing ring for supporting a protective device

A protective device for a driveshaft (1) has a connecting cap (9) and sliding ring (10) for connecting to a joint yoke (4) of a universal joint (2). The connecting cap (9) connects with a protective cone (1 2). The protective cone (12) includes a fixing portion (16) which fixes it on the connecting cap (9) by one or several resilient locking elements (22) which are connected to the sliding ring (10). The resilient locking elements (22) enable the protective cone (12) to be axially slid onto the connecting cap (9) without requiring any additional auxiliary means. However, the locking elements (22) can only be opened by deliberately actuating at least one locking element by a tool, to enable access to the joint (2) for maintenance purposes.

Protective device for driveshafts having a removable protective cone

The invention relates to a protective device which is supported on the two universal joints (2, 2') by connecting caps (8) and sliding ring. Furthermore, each connecting cap (8) is formed to allow a protective cone (12) to be connected thereto. Protective devices of said type provide protection against contact and are stationary, while the driveshaft (1) rotates. Each connecting cap (8) is attached by spokes (19) to a supporting ring (13) which supports the protective cone (12) from the inside. When the protective cone (12) is subjected to radial loads, for example if the driveshaft is stepped on unintentionally, the purpose of the above measure is to prevent the protective cone (12) from contacting the components of the universal joints (2, 2') which it covers. This measure ensures that in order to make the components of the universal joint (2, 2') accessible, for example for the purpose of sliding on a power take-off shaft, the protective cone can be made to be sufficiently resilient in the direction of the longitudinal axis, while at the same time being capable of accommodating high loads in the radial direction.

Protective device for a driveshaft having radial supporting means for

A protective device for telescopic driveshafts used in driving agricultural implements has two protective tubes (8, 9) which are axially inserted into, and overlap, one another. The tubes (8, 9) are adjustable relative to one another along their longitudinal axis (5) and are made of plastics. The outer protective tube (8) includes three circumferentially distributed pairs of ribs ( 13, 14). The ribs (13, 14) are arranged at a distance from one another and a groove (11) is formed between the ribs (13, 14). Guiding webs (15) are provided between pairs of ribs ( 13, 14). The webs (15) project inwardly towards the longitudinal axis (5) from the inner face (12) of the outer protective tube (8). The webs (15) also project inwardly towards the longitudinal axis (5) and serve to center and radially support the tube (9). The outer face of the outer protective tube has a smooth finish. Thus, there are no projections which may possibly injure the operative when unintentionally rotating the protective device.

Protective device for telescopic shafts

A length adjusting mechanism for a driveshaft has two tubular profiles, an outer profile (6) and an inner profile (7). The outer profile (6) includes two circumferentially offset drawn in wedges (8) which project inwardly beyond the inner face of the otherwise circular cross-section of the outer profile (6). The wedges (8) engage grooves (11) of an inner profile (7). The grooves (11) are also drawn in. In this way it is possible to produce a pair of profiles which are suitable to transmit high torques and which, furthermore, do not include any parts which project in a radially outward direction.

Driveshaft length adjusting mechanism with two profiles

The invention relates to a side strut (6) for the lower steering arm of a three-point hitch of a tractor. Locking catches (24, 25) are provided to cancel the floating position which the two telescopic members (14, 15) of the side strut 6 may assume relative to each other. The catches (24, 25) lock the members via locking contours (29, 30) of a locking recess 28, which surround and secure to a locking journal (31). The two locking catches (24, 25) are arranged at the sides of the telescopic members (14, 15). The locking catches have their pivot axis of the articulated journal (27) the points of contact between the locking contours (29, 30) and the locking journals (31), in a locked position, positioned on a connecting line. The line extends parallel to the sliding axis (16) and through the pivot axis of the ball eye (13). In this way, it is ensured that the locking catches (24, 25) and also the side strut (6), together, are not subject to any bending moments resulting from any tensile or compressive forces.

Growing community of inventors

Ruppichteroth, Germany

Paul Herchenbach