DE2944843A1 - Torque-transmitting coupling with shear pins - has driven flange supported by bearings on hub - Google Patents

Abstract

The coupling has shear pins or other fracturing components to prevent overloading. It comprises driving and driven flanges (1,2), the latter turning on a hub (3), to which it is coupled by shear pins (4) evenly spaced round the periphery, and which are a sliding fit in bushes (5,5a) in bores in flange and hub. The driven flange is supported in the radial and axial directions on the hub by plain, ball or roller bearings (8a,8b,9a,9b), so as to turn easily on it if the pins shear.

Description

Patent and utility model auxiliary application "Breaking bolt or pressure

or ripper safety coupling for torque transmission Die The following invention concerns a safety shaft coupling as low as possible Overall length with shear pins, pressure or tear links, in which the break, pressure or Coupling flanges containing ReiSglieder are rotatably mounted in one another.

The invention is described below in one of many possible embodiments Explained on n £ lnd the attached illustration: (1) is the driving, (2) the driven Coupling flange; (3) is the coupling flange hub, which is frictionally engaged by shear pins (4). The shear pins (4) of which two or more Sxel.lplare on circumference are evenly distributed, are in guide bushes (5) and (5a) by means of a suitable sliding seat. So that if the shear pin breaks during the During operation a disruptive axial displacement of the Prechbolzenreste after the other Flansonseite is possible, shear bolts are on the two front sides by means of one screw (6) and (6a) each, one or more plate springs (7) and (7a) are preloaded arranged, which in each case axially after the breakage of the shear pin, the remaining pieces pull on the outside so that it is no longer possible to touch the fracture surface.

This means that the shear bolt holes can also be re-drilled after a long period of operation Frequent breakage of the bolts with their bore axes exactly on their pitch circle diameters remain, the driven coupling flange (2) is double on the pulley flange (3) each with a @ e @ igneten sliding or .Sålzlager (°) and (8a) radial and with two or three thrust washers or axial roller bearings (9), (9a) and (9b), axial stored exactly fixed. For the purpose of lubricating the radial bearings (8) and (8a) and the axial bearings (9), (9a) and (9b) are corresponding lubricant supply options in the form of pressure lubrication heads (10) or other suitable @ u elements.

Claims (4)

P a t e n t a n s p r ü c h e: 1. @@@ belzer-Sicherheitaku @lun bes starting from a driving and sinem truss coupling flange, which in turn is rotatably mounted on a corresponding Hu @ plun, sflanschnabe and @@ i the @ roft @ transmission between the geared coupling flange and the associated one rather inclined, rotatable coupling flange hub in relation to the ear hole axis of the horn plan Flange hub offset eccentrically to attached mounting holes for @ @ rungeb @ clsen @eeigrete @@ echbolsen are present and s @ ischen the @driven coupling flange and the @@ ri @ en Hu lun sflunschnabe for @ rh @ hun the read stability of the coupling flange a de @@ elte, radial bearing in the form of slide or @lz bearings and also axial Suitable disk or cylinder bearings are installed. 2.) @ ecnpolzen safety coupling according to claim 1 d a d u r c h it is not noted that in place of an inner axial thrust washer, too two thrust washers arranged concentrically to one another are used. 3.) self-locking bolt safety coupling according to claims 1 and 2 d ad u r c h e k e n n n n e i n e t, that suitable for the lubrication of the bearing Lubricant bores are available and with lubricating heads that are accessible from the outside or automatic lubrication devices are provided. 4.) Shear pin safety coupling according to claims 1 to 3 d ad u r c h e k e k e n n z e i c h n e t, da @ instead of shear pins also compression links or tear links as security elements in a suitable manner for power transmission available.