Road paver

Abstract

A road paver for producing a pavement layer made of a paving material conveyable in a direction opposite to a paving direction of travel of the road paver to a transverse distributor assembly and distributable by way of the transverse distributor assembly transverse to the paving direction of travel substantially over a working width of a screed. The road paver comprises an exchangeable component configured to contact the paving material at least during operation of the road paver, an attachment unit for the attachment of the exchangeable component to a work assembly or to a chassis of the road paver, and a wear protection for the attachment unit. The wear protection comprises a sacrificial body for mounting onto the attachment unit and/or a protective body with a protective section which is formed to be ramp-shaped or curved at least in sections to guide the paving material over the attachment unit.

What is claimed is: 
     
         1 . A road paver for producing a pavement layer made of a paving material that is conveyable in a direction opposite to a paving direction of travel of the road paver from a material storage of the road paver to a transverse distributor assembly of the road paver and distributable by way of the transverse distributor assembly transverse to the paving direction of travel of the road paver and relative to a working width of a screed of the road paver, wherein the road paver comprises an exchangeable component arrangeable to come into contact with the paving material at least during operation of the road paver, an attachment unit for attachment of the exchangeable component to a work assembly or to a chassis of the road paver, and a wear protection for the attachment unit, wherein
 the wear protection comprises a sacrificial body for mounting onto the attachment unit and/or a protective body with a protective section which is formed to be ramp-shaped or curved at least in sections and configured to guide the paving material over the attachment unit.   
     
     
         2 . The road paver according to  claim 1 , wherein the wear protection comprises the protective body, and the protective body is arranged only on a side of the attachment unit configured to face the conveyed paving material. 
     
     
         3 . The road paver according to  claim 1 , wherein the attachment unit comprises a screw with a screw head and/or a screw nut attached to the screw. 
     
     
         4 . The road paver according to  claim 3 , wherein the attachment unit comprises the screw nut configured as a hexagonal nut or a cap nut. 
     
     
         5 . The road paver according to  claim 3 , wherein the wear protection comprises the sacrificial body, and the sacrificial body is configured such that the sacrificial body completely covers the screw head and/or the screw nut when the sacrificial body is mounted onto the attachment unit. 
     
     
         6 . The road paver according to  claim 1 , wherein the wear protection is a single-piece component or a multi-piece construction device. 
     
     
         7 . The road paver according to  claim 1 , wherein the wear protection comprises two half shells. 
     
     
         8 . The road paver according to  claim 1 , wherein the wear protection comprises the sacrificial body, and the sacrificial body is attached onto the attachment unit in a force-fit and/or positive-fit manner. 
     
     
         9 . The road paver according to  claim 1 , wherein the wear protection comprises the sacrificial body, and the sacrificial body is connected to the attachment unit in a positive-fit and/or positive substance-fit manner. 
     
     
         10 . The road paver according to  claim 1 , wherein the wear protection comprises the protective body with the protective section, and the protective section is inclined towards the attachment unit. 
     
     
         11 . The road paver according to  claim 10 , wherein the attachment unit comprises a screw with a screw head and/or a screw nut attached to the screw, and wherein the protective section extends over an entire height of the screw head and/or of the screw nut. 
     
     
         12 . The road paver according to  claim 1 , wherein the wear protection comprises the protective body with the protective section, and the protective section is configured in a form of a shield comprising an inner side, and a distance between the inner side of the protective section and the attachment unit varies along a length of the inner side. 
     
     
         13 . The road paver according to  claim 1 , wherein the wear protection comprises the protective body, and the protective body is configured as an integrally formed extension of the exchangeable component or is attached separately from the exchangeable component as a separate component to a portion of the road paver. 
     
     
         14 . The road paver according to  claim 1 , wherein the transverse distributor assembly comprises a shaft and a distributor auger attached in a releasable manner onto the shaft by way of the attachment unit, wherein the distributor auger comprises a main body mounted onto the shaft and an auger blade extending from the main body and running around the shaft, and wherein the exchangeable component comprises the distributor auger. 
     
     
         15 . The road paver according to  claim 14 , wherein the wear protection comprises the protective body with the protective section, and the protective section extends along a direction of curvature that is opposite to a direction of rotation of the auger blade. 
     
     
         16 . The road paver according to  claim 14 , wherein the protective body is formed integrally with the distributor auger. 
     
     
         17 . The road paver according to  claim 14 , wherein the protective body is formed separately from the distributor auger as a separate component. 
     
     
         18 . The road paver according to  claim 14 , wherein the wear protection comprises the protective body with the protective section, and the protective body is attached to the shaft as a separate component, and the protective body comprises a base part that extends along a circumferential surface of the shaft, and the protective section encloses a predetermined angle with the base part. 
     
     
         19 . The road paver according to  claim 1 , wherein the exchangeable component comprises a widening part of the screed for attachment to a screed base body of the screed by way of the attachment unit and/or comprises a pre-scraper for attachment to a screed base body of the screed by way of the attachment unit, and/or is a channel plate for attachment to the chassis by way of the attachment unit. 
     
     
         20 . A road paver for producing a pavement layer made of a paving material, the road paver comprising:
 a screed;   a transverse distributor assembly configured to distribute the paving material in a direction transverse to a paving direction of travel of the road paver and relative to a working width of the screed;   an exchangeable component that is arrangeable to come into contact with the paving material at least during operation of the road paver;   an attachment unit configured to attach the exchangeable component to a portion of the road paver; and   a wear protection for the attachment unit, wherein the wear protection comprises a sacrificial body for mounting onto the attachment unit and/or a protective body with a protective section which is formed to be ramp-shaped or curved at least in a section to guide the paving material over the attachment unit.