ROAD PAVER WITH SYSTEM FOR REPLACING A HEATING DEVICE OF A BEARING BLOCK ARRANGEMENT FOR A DISTRIBUTING AUGER

Abstract

A road paver comprises a paving screed, a bearing block arrangement and a distributing auger. The bearing block arrangement comprises a bearing block, a cover and a heating device. The distributing auger is rotatably mounted at the bearing block for distributing paving material. The heating device is received in an accommodation space of the bearing block arrangement. The bearing block arrangement is configured to be selectively brought into a working configuration and into a removal configuration, wherein the heating device is removable from the accommodation space in the removal configuration, but not in the working configuration. At least a base part of the cover is connected to the bearing block both in the working configuration and in the removal configuration. In the working configuration, the base part of the cover at least partially covers the heating device towards a front with respect to a paving direction of the road paver.

Claims

1. A road paver comprising: a paving screed for compacting paving material; a bearing block arrangement comprising a bearing block, a cover and a heating device; and a distributing auger rotatably mounted at the bearing block for distributing paving material; wherein the heating device is received in an accommodation space of the bearing block arrangement; wherein the bearing block arrangement is configured to be selectively brought into a working configuration and into a removal configuration, wherein the heating device is removable from the accommodation space in the removal configuration, but not in the working configuration; wherein at least a base part of the cover is connected to the bearing block both in the working configuration and in the removal configuration; and wherein in the working configuration the base part of the cover at least partially covers the heating device towards a front with respect to a paving direction of the road paver.

2. The road paver according to claim 1, wherein the accommodation space is formed between the bearing block and the cover.

3. The road paver according to claim 1, wherein the base part of the cover comprises at least 40 percent of a total mass of the cover.

4. The road paver according to claim 3, wherein the base part of the cover comprises at least 50 percent of the total mass of the cover.

5. The road paver according to claim 3, wherein the base part of the cover comprises at least 70 percent of the total mass of the cover.

6. The road paver according to claim 3, wherein the base part of the cover comprises at least 80 percent of the total mass of the cover.

7. The road paver according to claim 3, wherein the base part of the cover comprises at least 95 percent of the total mass of the cover.

8. The road paver according to claim 1, wherein the cover comprises at least one flap part which is pivotable about a pivot axis for changing the configuration of the bearing block arrangement between the working configuration and the removal configuration.

9. The road paver according to claim 1, wherein the cover comprises two flap parts which are pivotable about a common pivot axis for changing the configuration of the bearing block arrangement between the working configuration and the removal configuration.

10. The road paver according to claim 1, wherein the cover comprises an additional part, which in the working configuration is detachably attached to the bearing block independently of the base part and in the removal configuration is detached from the bearing block.

11. The road paver according to claim 1, wherein the bearing block arrangement comprises a clamping element, wherein the clamping element is configured for clamping the heating device against a support structure.

12. The road paver according to claim 1, wherein the cover comprises a heating device holder, wherein the heating device holder is configured to hold the heating device in a position in the working configuration and release the heating device in the removal configuration.

13. The road paver according to claim 1, wherein the cover is configured as a plow body, and wherein the base part of the cover in the working configuration forms at least a part of a shape of the plow body that tapers forward with respect to the paving direction of the road paver.

14. The road paver according to claim 13, wherein the shape of the plow body tapering forward with respect to the paving direction in the working configuration has two side surfaces running towards each other at an acute angle along the paving direction.

15. A method for removing a heating device from a bearing block arrangement of a road paver, wherein the bearing block arrangement comprises a bearing block, a cover and the heating device, wherein the heating device is received in an accommodation space of the bearing block arrangement, wherein a distributing auger for distributing paving material is rotatably mounted at the bearing block, and wherein the method comprises: transferring the bearing block arrangement from a working configuration to a removal configuration, wherein at least a base part of the cover is connected to the bearing block both in the working configuration and in the removal configuration, wherein the base part of the cover in the working configuration at least partially covers the heating device towards a front with respect to a paving direction of the road paver; and removing the heating device from the accommodation space in the removal configuration.

16. The method according to claim 15, wherein the transferring the bearing block arrangement from the working configuration to the removal configuration comprises pivoting a flap part of the cover about a pivot axis, thereby clearing an opening for removing the heating device.

17. The method according to claim 15, wherein the transferring the bearing block arrangement from the working configuration to the removal configuration comprises disassembling an additional part of the cover from the bearing block.

18. The method according to claim 15, wherein the transferring the bearing block arrangement from the working configuration to the removal configuration comprises opening the accommodation space.

19. The method according to claim 15, wherein before the removing the heating device from the accommodation space, a clamping element is released, which clamps the heating device against a support structure.

20. The method according to claim 15, wherein the transferring the bearing block arrangement from the working configuration to the removal configuration comprises loosening a screw connection between the heating device and the bearing block arrangement.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In the following, embodiments according to the disclosure are explained further with reference to the Figures.

[0040] FIG. 1 shows a schematic perspective view of a road paver according to an embodiment.

[0041] FIG. 2 shows a schematic perspective view of a bearing block arrangement according to an embodiment, viewed from the front at an angle.

[0042] FIGS. 3 to 5 show different embodiments of a hinged cover.

[0043] FIG. 6 shows an embodiment of a cover with a base part and an additional part.

[0044] FIGS. 7 and 8 show different embodiments of a cover with a screw connection.

DETAILED DESCRIPTION

[0045] FIG. 1 shows a schematic perspective view of a road paver 1 according to an embodiment. The road paver 1 comprises a towing vehicle 3 with a travel drive and a paving screed 5. The paving screed 5 is attached to the towing vehicle 3 via towing bars 7 and is pulled by the towing vehicle 3. With respect to a paving direction 9 of the road paver 1 at the front of the towing vehicle 3, a hopper 11 is provided for receiving paving material. The paving material from the hopper 11 is conveyed to the rear against the paving direction 9 via conveying devices on the towing vehicle 3 and is presented to the paving screed 5.

[0046] A distributing auger 13 is provided in relation to the paving direction 9 between the paving screed 5 and the towing vehicle 3. The distributing auger 13 extends transversely to the paving direction 9 and distributes paving material in front of the paving screed 5 transversely to the paving direction 9. The distributing auger 13 is attached to the towing vehicle 3 via a bearing block arrangement 15. The distributing auger 13 is rotatably mounted on the bearing block arrangement 15.

[0047] FIG. 2 shows the bearing block arrangement 15 viewed from the towing vehicle 3. The bearing block arrangement 15 comprises a bearing block 17 which, in the embodiment shown, has a bearing 19 which rotatably supports the distributing auger 13. A cover 21 is attached to the bearing block 17 at the front in the paving direction 9. In the embodiment shown, the cover 21 is configured as a plow body. The cover 21 comprises two side surfaces 23, 25 running towards each other at an acute angle along the paving direction 9. Due to the tapered shape of the cover 21, the cover 21 offers comparatively low resistance for the paving material running around the cover 21. In the embodiment shown, the cover 21 is connected to the bearing block 17 via screw connections 27.

[0048] An accommodation space 29 (see FIGS. 3 to 8), in which a heating device 31 is received, is formed between the bearing block 17 and the cover 21. The heating device 31 can be configured as an electrical resistance heating element in the form of a heating rod.

[0049] In the situation shown in FIG. 2, the bearing block arrangement 15 is provided in a working configuration. In the working configuration, the heating device 31 cannot be removed from the accommodation space 29. In order to enable replacement or maintenance of the heating device 31, the bearing block arrangement 15 can be brought into a removal configuration in which the heating device 31 can be removed from the accommodation space 29.

[0050] FIGS. 3 to 8 show different embodiments of the cover 21, which can be used in particular in the road paver 1 shown in FIG. 1 or in the bearing block arrangement 15 shown in FIG. 2.

[0051] In the embodiment shown in FIG. 3, the side surfaces 23, 25 of the cover 21 running towards each other at an acute angle along the paving direction 9 can each be pivoted about an axis 33, 35 assigned to the respective side surface 23, 25. In the embodiment shown, the axes 33, 35 are vertical axes. By pivoting the side surfaces 23, 25, the accommodation space 29 between the bearing block 17 and the cover 21 can be made accessible. The bearing block arrangement 15 can therefore be transferred from the working configuration to the removal configuration by pivoting the side surfaces 23, 25 about the axes 33, 35 in order to enable removal of the heating device 31.

[0052] In the embodiment shown in FIG. 4, the bearing block arrangement 15 can also be transferred from the working configuration to the removal configuration by pivoting the side surfaces 23, 25. In contrast to the embodiment shown in FIG. 3, however, in the embodiment according to FIG. 4 both side surfaces 23, 25 are pivoted about a common axis 37. In the embodiment shown, the common axis 37 is a vertical axis.

[0053] In FIG. 5, the bearing block arrangement 15 can also be converted from the working configuration to the removal configuration by pivoting the side surfaces 23, 25. In FIG. 5, the side surface 23 can be pivoted about the axis 39 and the side surface 25 about the axis 41. The axes 39 and 41 are horizontal axes.

[0054] FIGS. 3 to 5 each show both side surfaces 23, 25 pivotable. However, it may already be sufficient to pivot only one of the side surfaces 23, 25 in order to bring the bearing block arrangement 15 into the removal configuration.

[0055] In FIGS. 3 to 5, the entire cover 21 can be regarded as the base part 42 of the cover 21, which is connected to the bearing block 17 both in the working configuration and in the removal configuration.

[0056] FIG. 6 shows an embodiment of the cover 21 in which only a part of the cover 21 forms a base part 42, which remains connected to the bearing block 17 both in the working configuration and in the removal configuration. In addition to the base part 42, the cover 21 in FIG. 6 comprises an additional part 44. In FIG. 6, the line 40 represents a separation between the base part 42 and the additional part 44. In order to bring the bearing block arrangement 15 from the working configuration to the removal configuration, the additional part 44 can be removed from the bearing block 17 by loosening the screw connections 27 connecting the additional part 44 to the bearing block 17. The base part 42, on the other hand, can remain connected to the bearing block 17. Due to the (at least) two-part nature of the cover 21, it is not necessary to remove the complete cover 21 in order to make the accommodation space 29 accessible.

[0057] FIG. 7 shows a further embodiment of the cover 21. In the embodiment shown in FIG. 7, the cover 21 comprises an opening 43 through which the heating device 31 can be inserted into the accommodation space 29. In the embodiment shown, the opening 43 is open at the top so that the heating device 31 can be inserted or removed along a vertical direction. Within the accommodation space 29, a spring is provided as a support structure 45 for the heating device 31. The opening 43 has an internal thread. A clamping element 47 with an external thread can be screwed into the opening 43. When the heating device 31 is inserted, the clamping element 47 presses on the heating device 31 from above in the screwed-in state and presses it against the support structure 45. In order to transfer the bearing block arrangement 15 from the working configuration to the removal configuration, the clamping element 47 can be unscrewed from the opening 43. The support structure 45, which is configured as a spring, then pushes the heating device 31 upwards so that the heating device 31 protrudes from the opening 43 and can be removed. The cover 21 remains connected to the bearing block 17 during the entire process.

[0058] The embodiment shown in FIG. 8 essentially corresponds to the embodiment shown in FIG. 7, however the clamping element 47 is part of the heating device 31. Due to the connection between the heating device 31 and the clamping element 47, the heating device 31 can be removed directly by gripping the clamping element 47 upwards after loosening the screw connection between the clamping element 47 and the opening 43.

[0059] The opening 43 with the internal thread can be referred to as the heating device holder.

[0060] In each of FIGS. 7 and 8, the entire cover 21 can be viewed as the base part 42 of the plow body 21, which is connected to the bearing block 17 in both the working configuration and the removal configuration.