Abstract
A sliding module having a sliding sleeve and at least one cam segment having at least one cam. The sliding sleeve has a positioning section for positioning the cam segment fixedly against rotation and displacement. The positioning section includes a surface structure on the outer circumferential face of the sliding sleeve for producing a press-fit connection between the cam segment and the sliding sleeve. A stop region is provided configured to limit an axial movement of the cam segment.
Claims
1.-10. (canceled)
11. A sliding module, comprising: a sliding sleeve; and at least one cam segment having at least one cam; wherein the sliding sleeve has a positioning section configured to position the cam segment fixedly against rotation and displacement, the positioning section comprising: a surface structure on the outer circumferential face of the sliding sleeve configured to produce a press-fit connection between the cam segment and the sliding sleeve; and a stop region for limiting an axial movement of the cam segment.
12. The sliding module as claimed in claim 11, wherein the stop region is a constituent part of the surface structure.
13. The sliding module of claim 11, wherein the surface structure is a material accumulation.
14. The sliding module of claim 13, wherein the surface structure is a roll-formed portion.
15. The sliding module of claim 11, wherein the stop region is a projection which extends in the radial direction away from the outer circumferential face.
16. The sliding module of claim 11, wherein the stop region protrudes beyond the surface structure in the radial direction.
17. The sliding module of claim 11, wherein the stop region is configured at a distal end of the sliding sleeve.
18. The sliding module of claim 11, wherein the stop region is configured at an end of the positioning section.
19. The sliding module of claim 11, wherein the cam segment has a through bore with at least one insertion bevel which is disposed at a distal end thereof.
20. The sliding module of claim 11, wherein the cam segment has a through bore with a material accumulation
21. The sliding module of claim 20, wherein the cam segment has a through bore with a toothing system.
22. A camshaft having a load-bearing shaft with at least one longitudinal toothing system which is configured in sections on the load-bearing shaft, and further comprising the sliding module of claim 11.
Description
[0016] Embodiments of a sliding module according to the invention will be described in greater detail in the following text using drawings, in which, in each case diagrammatically:
[0017] FIG. 1 shows a perspective view of one embodiment of a sliding sleeve of a sliding module according to the invention,
[0018] FIG. 2 shows a perspective view of one embodiment of a disassembled sliding module,
[0019] FIG. 3 shows a perspective sectional view of that embodiment of a disassembled sliding module which is shown in FIG. 2,
[0020] FIG. 4 shows a lateral sectional illustration of that embodiment of a disassembled sliding module which is shown in FIGS. 2 and 3,
[0021] FIG. 5 shows a perspective view of one embodiment of a sliding module in the mounted state,
[0022] FIG. 6 shows a perspective sectional view of that embodiment of a mounted sliding module which is shown in FIG. 5, and
[0023] FIG. 7 shows a lateral sectional view of that embodiment of a mounted sliding module which is shown in FIGS. 5 and 6.
[0024] Elements with the same function and method of operation are provided in each case with the same designations in FIGS. 1 to 7.
[0025] FIG. 1 shows a perspective view of one embodiment of a sliding sleeve 1 of a sliding module according to the invention. The sliding sleeve 1 has an outer circumferential face 1.1 and an inner circumferential face 1.2. The inner circumferential face 1.2 is formed by way of a through opening 1.3. The positioning section 2 having a surface structure 3 and a stop region 4 is configured on the outer circumferential face 1.1. As viewed in the axial direction along the longitudinal axis 5, the positioning section 2 is configured at a distal end of the sliding sleeve 1. It is also conceivable, however, that the positioning section 2 is of indented configuration with respect to the distal end of the sliding sleeve 1 as viewed in the axial direction along the longitudinal axis 5, with the result that the distal end of the sliding sleeve 1 is present, for example, in an untreated form, that is to say without a configured surface structure 3 and without a configured stop region 4.
[0026] FIG. 2 shows one embodiment of a sliding module 10 in the state in which it is not yet assembled, that is to say in the disassembled state. In terms of its configuration, the sliding sleeve 1 corresponds to the sliding sleeve which is shown in FIG. 1. In addition, the sliding module 10 has a cam segment 6 which, as shown in FIG. 2, consists of a cam 6.1. It is also conceivable, however, that the cam segment 6 comprises a plurality of cams, in particular two or more cams which can be arranged next to one another in the axial direction along the longitudinal axis 5 on the sliding sleeve 1, in particular the positioning section 2. The cam segment 6 has a through bore 8 which comprises a material accumulation 7. The material accumulation 7 is advantageously configured in the form of a longitudinal toothing system which extends in the axial direction along the longitudinal axis 5. The surface structure 3 of the positioning section 2 of the sliding sleeve 1 is advantageously configured in the form of a roll-formed portion which extends in the circumferential direction around the sliding sleeve 1. Accordingly, the geometrical configuration of the material accumulation 7 of the cam segment 6 is configured substantially transversely with respect to the geometrical configuration of the surface structure 3 of the positioning section 2 of the sliding sleeve 1. As a result, a reliable connection, in particular a press joint, is advantageously made possible between the cam segment 6 and the sliding sleeve 1 in the region of the positioning section 2.
[0027] FIG. 3 once again clearly shows the configuration of the material accumulation 7, in particular the longitudinal toothing system of the cam segment 6. The insertion bevel 9 of the cam segment 6 can also be seen in FIG. 3, which insertion bevel 9 advantageously serves to make mounting of the cam segment 6 on the sliding sleeve 1 possible in a simple way. It is also conceivable that the cam segment 6 has a further insertion bevel 9.1. The configuration of the surface structure 3 of the sliding sleeve 1 is clarified in FIG. 4 which shows the lateral sectional illustration of the disassembled sliding module which is shown in FIGS. 2 to 3. The surface structure 3 which is advantageously present in the form of a roll-formed portion makes it possible to increase the outer circumference of the sliding sleeve 1, in order, as a consequence, to make a sufficient press joint possible between the sliding sleeve 1 and the cam segment 6 during the application of the cam segment 6 on the positioning section 2 of the sliding sleeve 1.
[0028] FIGS. 5 to 7 show different illustrations of one embodiment of a sliding module 10 according to the invention. It can be seen here that, during an application of the cam segment 6 on the sliding sleeve 1 along the mounting direction 20, a connection takes place between the material accumulation 7 of the cam segment 6 and the surface structure 3 of the positioning section 2 of the sliding sleeve 1 in the region of the positioning section 2. Here, as can be seen, in particular, in FIG. 7, the cam segment 6 is pushed onto the positioning section 2 to such an extent that the stop region 4 makes contact with the insertion bevel 9 and prevents a further displacement of the cam segment 6 in the axial direction along the longitudinal axis 5. The stop region 4, in particular the force absorbing surface of the stop region 4, advantageously makes contact with a surface of the insertion bevel 9 of the cam segment 6, as a result of which secondly the transfer to the stop region 4 of the positioning section 2 of the sliding sleeve 1 of the axial force which is applied to the cam segment 6 also takes place. As a result, an unwanted axial displacement of the cam segment 6 on the sliding sleeve 1 in the axial direction along the longitudinal axis 5 is advantageously prevented.
LIST OF DESIGNATIONS
[0029] 1 Sliding sleeve [0030] 1.1 Outer circumferential face [0031] 1.2 Inner circumferential face [0032] 1.3 Through opening [0033] 2 Positioning section [0034] 3 Surface structure [0035] 4 Stop region [0036] 5 Longitudinal axis [0037] 6 Cam segment [0038] 6.1 Cam [0039] 7 Material accumulation [0040] 8 Through bore [0041] 9 Insertion bevel [0042] 9.1 Further insertion bevel [0043] 10 Sliding module [0044] 20 Mounting direction
