RU2771909C2 - Device for mounting camshaft with possibility of rotation and vehicle with this device - Google Patents

Abstract

FIELD: engine building.

SUBSTANCE: invention can be used in internal combustion engines. Device (110) for mounting camshaft (12) of an internal combustion engine with the possibility of rotation contains first case (14A) of a bearing with fastener (22A) for mounting camshaft (12) with the possibility of rotation, cylinder head (16) or support frame (30) for fixing first case (14A) of the bearing and first fastening means (18). First fastening means (18) fastens first case (14A) of the bearing to cylinder head (16) or support frame (30). First fastening means (18) is the only fastening means (18) that fastens first case (14A) of the bearing to cylinder head (16) or support frame (30). There is second case (14B) of the bearing with fastener (22B) for mounting camshaft (12). First case (14A) of the bearing and second case (14B) of the bearing together form a two-component support of the bearing. Fastener (22A) of first case (14A) of the bearing and fastener (22B) of second case (14B) of the bearing form a common fastener for camshaft (12). Alternatively, there is at least one positioning element that is installed between first case (14A) of the bearing or second case (14B) of the bearing from one side, and cylinder head (16) or support frame (30) from the other side for positioning first or second case (14A) or (14B) of the bearing relatively to cylinder head (16) or support frame (30). Alternatively, device (110) does not contain a positioning element for positioning first or second case (14A) or (14B) of the bearing relatively to cylinder head (16) or support frame (30). Alternatively, it contains one axis of valve lever (20) for mounting with the possibility of rotation the valve lever, in which first fastening means (18) additionally fastens the axis of valve lever (20) to cylinder head (16) or support frame (30). A vehicle is disclosed.

EFFECT: simplification of the design, and improvement and compactness of the device.

12 cl, 2 dwg

Description

The invention relates to a device for mounting a camshaft with the possibility of rotation.

Camshafts are required in internal combustion engines to control the intake and exhaust valves and are attached by means of so-called bearing supports, for example, to the cylinder head in the cylinder block of an internal combustion engine. Alternatively, it is also possible to attach the bearing supports to the base frame. The bearing supports mount the camshaft in a rotatable manner. To achieve the smoothest possible movement when installing the camshaft, it is necessary that the camshaft and bearing supports are located opposite the cylinder head.

Document DE 102011081483 A1 presents a method for a simplified and positionally accurate fixing of a camshaft module with a camshaft and bearing supports on the cylinder head. The bearing supports are mounted on the camshaft in an axial direction with angular alignment. The camshaft is installed using two alignment elements against the cylinder head. Individual bearing supports are screwed to the cylinder head while rotating the camshaft simultaneously or alternately.

A cylinder head for an internal combustion engine is known from DE 19752381 A1. At least one bearing support is provided on the cylinder head with one half-bearing for one camshaft and one half-bearing for one valve lever axis for at least one valve lever. A first separate lubricant supply channel is provided in the cylinder head, and a second separate lubricant supply channel is provided in the bearing support. The first end of the second lubricant supply channel is in communication with the first lubricant supply channel. The second end of the second lubricant supply channel is open in the bearing surface for the valve arm shaft.

WO 2008/061382 A1 shows a camshaft assembly. The camshaft assembly has at least two bearing supports, each of which has a bearing mount in which a portion of the camshaft is rotatably mounted. Each bearing support has a flat contact surface for placement and mounting of the bearing support on the contact area of the cylinder head. Each bearing support is attached to the cylinder head with two screws in each case.

EP 0 285 598 B1 shows an in-line injection internal combustion engine with two overhead camshafts, four valves and one central injector per cylinder. Above the installed camshaft on the cylinder head, collapsible valve levers are made to start the pump injectors. At the same time, the cam for the valve levers is launched to actuate the pump injectors alternately for one cylinder from one camshaft and for an adjacent cylinder from the second camshaft, with each valve lever mounted separately. The detachable single mounting of the valve lever is made on bearing supports screwed to the cylinder head, while the screws simultaneously serve to strengthen the bearing parts for the camshafts.

DE 102007025129 A1 shows a cylinder head cover for covering a cylinder block of an internal combustion engine. At least one upper part of the bearing for one camshaft has at least one through hole located on the same line with the screw hole/through hole in one lower part of the bearing and/or the screw hole in the engine block on one side and with through hole in the cylinder head cover on the other side. Fastening the cylinder head cover and the upper part of the bearing to the cylinder block of an internal combustion engine is possible using a common fixing screw.

The invention is based on the object of providing an alternative or improved device for mounting a camshaft in a rotatable manner. In particular, a simpler and more compact design should be made.

The problem is solved using the device described in the independent claim. Preferred improvements are presented in the dependent claims and in the description.

The device is intended for installation with the possibility of rotation of the camshaft of an internal combustion engine. The device contains the first bearing housing with a mount for mounting the camshaft with the possibility of rotation. The device has one cylinder head or one support frame for mounting the first bearing housing. The device has a first attachment means (eg, a first attachment screw) that secures the first bearing housing to the cylinder head or support frame. The first fastener is the only fastener that secures (fixes, mounts) the first bearing housing to the cylinder head or support frame.

The device provides the advantage of allowing a more compact design of the first bearing housing. The first bearing housing must have enough material to install the fastener on one side only next to the camshaft mount. The first bearing housing, in particular, is made with the possibility of asymmetrical execution with respect to a vertical plane through the central longitudinal axis of the attachment. In addition, there is an opportunity to reduce costs, since fewer fasteners are required, fewer fasteners for fasteners (eg, bolt holes) need to be produced, and installation time is also reduced. Depending on the version, the first bearing housing can be attached either to the cylinder head or to the support frame.

Since only one fastening (for example, a blind hole, etc.) needs to be made for a single fastening means, the cylinder head or support frame can also be made in a looser design.

The first bearing housing, in particular, may have a first side region in which the first fastening means is located, and a second side region opposite the first side region with respect to the camshaft holder. The cylinder head is configured to be equipped with a flow channel extending in the area of the cylinder head that is located adjacent to (for example, adjacent to) the second side area (for example, under the second side area relative to the vertical axis) of the first bearing housing. Preferably, in this area, the flow channel can be made in the form (have the design) of a freely cast protrusion. This is possible due to the fact that there is no need for a cast thickening (cast protrusion) when making a blind hole for an additional fastener. Thus, the possibility of providing only one single fastening means can contribute to the design of the flow channel in the cylinder head, aimed at optimizing the flow.

Preferably, the camshaft mount can be made as a cylindrical through hole or a recess in the form of a half-cylinder.

Preferably, when using the support frame to secure the first bearing housing, the support frame can be fixed (fixed, installed) on the cylinder head.

It is also possible to install a camshaft as an overhead camshaft. For example, when using a cam follower valve lever to follow the contour of a camshaft cam, the camshaft is pressed down during operation. Thus, the camshaft is not inclined to rise, whereby it may be sufficient to use a single fastening means.

In one embodiment of the device, the first fastening means is the first fastening screw. In particular, the first fixing screw may be a single fixing screw that secures the first bearing housing to the cylinder head or support frame.

Preferably, the first bearing housing can have a through hole for fastening a first fastening means, in particular a first fastening screw, which/which passes through the through hole.

In another version of the device, the fastening means of the first bearing housing is attached to the cylinder head or support frame with force and positive locking.

Preferably, the first fastening means can be collapsible.

In particular, the first fastening means may be the only (eg collapsible) fastening means of the device.

In one embodiment, the first bearing housing forms an integral bearing support for mounting the camshaft.

Alternatively, the device has a second bearing housing with attachment (eg as a semi-cylinder recess) for receiving the camshaft. The first bearing housing and the second bearing housing together form a two-piece bearing pedestal. The fastening (for example, as a semi-cylinder recess) of the first bearing housing and the fastening (for example, as a semi-cylinder recess) of the second cylinder housing together form a fastening for the camshaft.

Thus, this disclosure of the invention can be used not only for one-piece bearing pedestals, but also for two-piece bearing pedestals. Therefore, this disclosure can be used not only in the case of mounted camshafts, but also in the case of forged camshafts, in which it is not possible to thread bearing supports.

Preferably, the second bearing housing may have a through hole for fastening a first fastening means, in particular a first fastening screw, passing through the through hole. The through hole of the first bearing housing and the through hole of the second bearing housing may be aligned.

In an improved embodiment, the first bearing housing and the second bearing housing are attached to each other by means of a second fastening means, in particular a second fastening screw, preferably positively and positively.

In particular, the first fastening means and the second fastening means may be provided on the opposite side of the first bearing housing with respect to the camshaft fastening.

Preferably, the second fastening means can be releasable.

In a particularly preferred embodiment of the device, the first fastening means and the second fastening means, in particular the first fastening screw and the second fastening screw, are the only fastening means of the device.

In another version of the device, the first fastening means further secures the second bearing housing to the cylinder head or support frame. It is also possible for the first fastener to be the only fastener securing the second bearing housing to the first bearing housing.

In one embodiment, the device also has at least one positioning element located between the first bearing housing and the second bearing housing for positioning the first bearing housing relative to the second bearing housing. In this way, in particular, the alignment of the camshaft mountings of the bearing housings with respect to each other can be ensured. In particular, the positioning elements are configured to position the first bearing housing relative to the second bearing housing in a plane perpendicular to the longitudinal axis of the first fastening means.

Alternatively, the device may not have a positioning element for positioning the first or second bearing housing relative to the cylinder head or support frame. Thus, it is possible to save the cost of positioning elements.

In an improved version, at least one positioning element located between the first bearing housing and the second bearing housing contains one positioning pin, one relief sleeve surrounding the first fastener, and/or one balancing sleeve surrounding the second fastener. In this regard, in particular, the use of balancing bushes makes it possible to slightly adjust the dimensions of the bearing housing, since no additional areas of material are required for basting the holes for the positioning pins.

In one version of the device, in addition, there is at least one positioning element, which is located between the first or second bearing housing and the cylinder head or support frame for positioning the first or second bearing housing relative to the cylinder head or support frame. Thus, it is possible to improve the alignment of the respective bearing housing with respect to the cylinder head or support frame. The positioning elements are in particular adapted to position the first or second bearing housing relative to the cylinder head or support frame in a plane perpendicular to the longitudinal axis of the first fastening means.

In an improved version, at least one positioning element located between the first or second bearing housing and the cylinder head or support frame includes one positioning pin and/or one balancing sleeve that surrounds the first fastener. The use of an offset sleeve allows for minor adjustments to the dimensions of the bearing housing, as no additional areas of material are required to baste the holes for the positioning pins.

However, it is also possible not to provide a positioning element between the first or second bearing housing and the cylinder head or support frame. Alignment between the respective bearing housings and the cylinder head (or bearing frame) could then be made possible by a guide through the camshaft. The camshaft is rotatably mounted on a plurality of spaced apart in the longitudinal direction of the camshaft camshaft mounting devices.

In another embodiment, the device has a valve lever shaft for mounting the valve lever in a rotatable manner. The first fastening means additionally fastens the valve arm shaft to the cylinder head or support frame and in particular also to the first and/or second bearing housing. Thus, it becomes possible to save on another additional fastening means for fastening the valve lever axle. Therefore, it is possible to reduce the assembly time as well.

In one embodiment, the first bearing housing has a mount for the valve arm shaft, which is preferably mounted on the side of the first bearing housing opposite the cylinder head or support frame.

In another embodiment, the longitudinal lubricating fluid passage of the valve arm shaft is in fluid communication with the camshaft attachment of the first bearing housing, preferably via the outlet passage of the first bearing housing and the outlet passage of the valve arm shaft. Thus, the lubricating fluid can flow along the axis of the valve lever to the camshaft plain bearing.

In one embodiment, the support frame or cylinder head has a hole, in particular a blind hole or a through hole, threaded for positive and positive locking of the first bearing housing on the support frame or cylinder head by means of the first fastening means. Thus, the first fastening means, in particular in the form of a fastening screw for fastening the first bearing housing (and also, in certain circumstances, the second bearing housing), can be screwed directly into the blind hole.

In another embodiment, the first bearing housing is made asymmetrically with respect to the vertical plane through the central longitudinal axis of the camshaft mount. This is possible in particular by providing one single fastening means (first fastening means) for fastening to the cylinder head or base frame.

Additionally or alternatively, the first fastening means is configured to generate a tilting moment for bearing the first bearing housing against the contact area of the cylinder head or the support frame.

The invention also relates to a motor vehicle, in particular to a commercial vehicle, which is equipped with the device described herein. The commercial vehicle may be, for example, a truck or a bus.

The device is also configured for use in passenger cars, heavy duty engines, off-road vehicles, stationary engines, marine engines, etc., as described herein.

The preferred embodiments and features of the invention described above are capable of being combined with one another as desired. Additional features and advantages of the invention will be described below with reference to the accompanying drawings. They show the following:

Fig. 1 is a sectional view of a device for installing a camshaft with the possibility of rotation; and

Fig. 2 is a sectional view of a rotatable camshaft mounting device according to another embodiment.

The embodiments shown in the figures coincide at least partially, so that similar or identical parts have the same reference signs, and for their explanation, in order to avoid repetition, reference is made to the description of other embodiments or figures.

In FIG. 1 shows a device 10 for mounting a camshaft 12 in a rotatable manner. The device 10 has a bearing housing 14, a cylinder head 16, a fixing screw 18 and a valve lever axle 20.

The device 10 is adapted to be used in any internal combustion engine to rotatably mount the camshaft 12. It is possible to use the internal combustion engine in, for example, a motor vehicle, in particular a commercial vehicle. The commercial vehicle may be, for example, a truck or a bus.

Bearing housing 14 is made in the form of an integral bearing support. The bearing housing 14 has a mount 22 for the camshaft 12. The camshaft 12 can be mounted with a plain bearing in the mount 22 in a rotatable manner. The mount 22 is a cylindrical through hole in the bearing housing 14. The camshaft 12 is a mounted camshaft. The cylindrical part of the camshaft 12 in the dismantled state of the camshaft 12 is inserted into the mount 22. Then the camshaft 12 is assembled. To install the camshaft 12 with the possibility of rotation, a group of bearing housings 14 is provided along the longitudinal axis of the camshaft 12. The camshaft 12 is installed as an overhead camshaft (overhead camshaft - ONS).

The bearing housing 14 is mounted (fixed) on the cylinder head 16 by means of a mounting screw 18. In particular, the mounting screw 18 passes through the through hole 24 of the bearing housing 14. The mounting screw 18 is screwed into the threads of the blind hole 26 of the cylinder head 16. The blind hole 26 extends inward cast thickening (cast protrusion) 27, formed, in particular, for basting a blind hole 26 or a through hole.

It should be emphasized here that the machine screw 18 is the only machine screw that secures the bearing housing 14 to the cylinder head 16. Conventional bearing mounts most commonly use two or four machine screws to secure the bearing housing to the cylinder head.

It has been found that the mounting screw 18 is sufficient as the only mounting screw for the bearing housing 14. For example, in embodiments that use a valve lever, the camshaft 12 is pressed down during operation by the cam follower of the valve lever. The self-weight of the camshaft 12 also exerts a downward action on it. Thus, the camshaft 12 does not tend to rise with the bearing housing 14 away from the cylinder head 16. In addition, due to the thrust of the machine screw 18 and the area of material on one side next to the machine screw 18 (left in Fig. 1) on the contact area 29 a tilting moment is generated relative to the cylinder head 16, which holds the first bearing housing 14 on the cylinder head 16.

The advantage of using only one fixing screw 18 is a more compact adjustment of the dimensions of the bearing housing 14 and saving the cost of other fixing screws. In particular, the bearing housing 14 extending from the mount 22 must have an area of material for accommodating the mounting screw 18 on one side only. On the opposite side, the bearing housing 14 can terminate directly with the wall area adjacent to the mount 22. In this way, the bearing housing 14 can be better adapted to the available mounting space. In particular, the bearing housing 14 can be made asymmetrically with respect to the vertical plane through the central longitudinal axis of the attachment 22 of the bearing housing 14.

In addition, a large degree of freedom arises with respect to the design of the cylinder head 16. The cylinder head 16, in particular in region A, does not need to have a cast bulge (cast protrusion) for basting a blind hole for screwing in the fixing screw. Instead, region A may be configured to optimize flow for fluid passage 28 in cylinder head 16.

Finally, it is also possible to reduce the number of device parts by reducing the number of mounting screws. In addition, production and assembly times are reduced, since fewer screw holes must be made and fewer fixing screws must be mounted.

Additionally, it should be noted that this disclosure is not limited to the fact that the mounting screw 18 secures the bearing housing 14 to the cylinder head 16. Alternatively, the mounting screw 18 may secure the bearing housing 14 to the support frame 30. The support frame 30 may then be reattached to the cylinder head. . In other words, alternatively, the structural element shown in FIG. 1 under the bearing housing 14, instead of the section of the cylinder head 16 may be a section of the support frame 30.

As an alternative to the fixing screw 18, another fastening means can also be used for forceful and positive locking of the bearing housing 14 on the cylinder head 16.

The axis of the valve lever 20 serves to rotatably mount a valve lever (not shown). By means of a cam follower, the valve lever is kinematically communicated between the camshaft 12 and one or more gas switching valves (not shown) to actuate the gas switching valves.

In the illustrated embodiment in FIG. 1 fixing screw 18 further secures the valve arm shaft 20 to the cylinder head 16 (support frame 30). In particular, the fixing screw 18 passes through the through hole 32 of the shaft of the valve lever 20. In the assembled state of the device 10, the holes 32, 24 and 26 are aligned with each other along the longitudinal axis of the fixing screw 18. The head of the screw 18A rests on the contact surface 20A of the shaft of the valve lever 20 The axis of the valve lever 20 is located in the mount 21 of the bearing housing 14. Additional fastening of the axis of the valve lever 20 with the fixing screw 18 is not necessary.

To lubricate the plain bearing in the mount 22, the lubricating fluid can be directed through the longitudinal channel 34 of the axis of the valve lever 20. The outlet channel 36 of the axis of the valve lever 20 flows into the outlet channel 38 of the bearing housing 14. The outlet channel 38 enters the mount 22 again.

For the relative positioning of the bearing housing 14 relative to the cylinder head 16 (support frame 30), it is possible to use additional positioning elements 40, 42 as desired. The positioning elements 40, 42 position the bearing housing 14 relative to the cylinder head 16 in a plane perpendicular to the longitudinal axis of the fixing screw 18.

The positioning element 40 is made in the form of a relief sleeve. The positioning element 40 is made with positive locking in the recess 44 of the bearing housing 14 and the recess 46 of the cylinder head 16 (support frame 30). The positioning element 40 is located around the fixing screw 18, preferably without touching the fixing screw 18.

The positioning element 42 is made in the form of a positioning pin. The positioning element 42 is made with positive locking in the recess 48 of the bearing housing 14 and the recess 50 of the cylinder head 16 (support frame 30). Positioning elements can be made, for example, in the form of relief sleeves.

It should be noted that versions without a positioning element are also possible. In such a case, the alignment of the bearing housing 14 is possible, for example, by means of a guide through the camshaft 12 located in several bearing housings 14.

In FIG. 2 shows another embodiment of the device 110 for mounting the camshaft 12 in a rotatable manner. The device 110 differs in particular in that it is also suitable for rotatably mounting forged camshafts, since the bearing supports cannot be threaded on in this case.

Instead of a one-piece bearing housing, device 110 has a first bearing housing 14A and a second bearing housing 14B. The first bearing housing 14A and the second bearing housing 14B form a two-piece bearing support. The first bearing housing 14A has a first mount 22A and the second bearing housing 14B has a second mount 22B. Mounts 22A, 22B form a common cylinder-shaped mount for camshaft 12.

With this embodiment, it is again worth emphasizing that the fixing screw 18 is the only fixing screw that secures (fixes) the bearing housing 14A, 14B to the cylinder head 16 (support frame 30). Specifically, the fixing screw 18 passes through the through hole 24A of the first bearing housing 14A and the through hole 24B of the second bearing housing 14B.

It is possible to further provide a second fixing screw 52 that secures the first bearing housing 14A to the second bearing housing 14B. The fixing screws 18 and 52 may be located on opposite sides of the camshaft 12. The fixing screw 52 passes through a through hole 58 in the first bearing housing 14A. The fixing screw 52 is screwed into the thread of the blind hole 60 of the second bearing housing 14B.

Positioning elements 54 and 56 are provided to position the bearing housings 14A and 14B relative to each other. The positioning elements 54, 56 position the first bearing housing 14A relative to the second bearing housing 14B in a plane perpendicular to the longitudinal axis of the fixing screw 18. The positioning elements 54, 56 are made in the form of relief bushings, however, they can also be made, for example, in the form of a dowel pin. The positioning members 54, 56 positively connect the first bearing housing 14A to the second bearing housing 14B. The positioning element 54 is located around the fixing screw 18, preferably without touching the fixing screw 18. The positioning element 56 is located around the fixing screw 52, preferably without touching the fixing screw 52.

Device 110 in FIG. 2 is an embodiment in which positioning elements are not provided for positioning the first and second bearing housings 14A, 14B relative to the cylinder head 16 (support frame 30). In improvements to this embodiment, positioning elements may be provided between the second bearing housing 14B and the cylinder head 16 (support frame 30).

The invention is not limited to the preferred embodiments described above. On the contrary, various variations and modifications are possible, which use the essence of the invention and, therefore, fall within the scope of protection. In particular, the invention also claims to protect the subject matter and features of the additional claims independently of the claims mentioned above.

List of reference symbols

10, 110 Rotating camshaft mounting device

12 Camshaft

14 Bearing housings

14A First bearing housing

14V Second bearing housing

16 Cylinder head

18 Mounting screw (fixing tool)

18A Screw head

20 Valve lever axle

20A Contact surface

21 Mount

22 Mount

22A Fastening in the first bearing housing

22V Fastening in the second bearing housing

24 Through hole

24A Through hole in the first bearing housing

24V Through hole in second bearing housing

26 Blind hole

27 Cast thickening (cast protrusion)

28 Fluid channel

29 Contact area

30 Base frame

32 Through hole

34 Longitudinal channel

36 Bypass channel

38 Bypass channel

40 Relief sleeve (positioning element)

42 Positioning pin (positioning element)

44 Recess

46 Recess

48 Recess

50 Cut

52 Fixing screw

54 Relief sleeve (positioning element)

56 Relief sleeve (positioning element)

58 Through hole

60 blind hole

A Working distance area of freely cast thickening (working area of freely cast protrusion)

Claims (27)

1. Device (10; 110) for installing the camshaft (12) of an internal combustion engine with the possibility of rotation, containing the first bearing housing (14; 14A) with fastening (22; 22A) for mounting the camshaft (12) with the possibility of rotation; cylinder head (16) or support frame (30) for fixing the first bearing housing (14; 14A); and first fastening means (18) that fastens the first bearing housing (14; 14A) to the cylinder head (16) or support frame (30), while the first fastening means (18) is the only fastening means (18) that fastens the first housing bearing (14; 14A) to the cylinder head (16) or support frame (30), which additionally contains a second bearing housing (14B) with a mount (22B) for receiving a camshaft (12), wherein the first bearing housing (14A) and the second bearing housing (14B) together form a two-piece bearing support; and the mount (22A) of the first bearing housing (14A) and the mount (22B) of the second bearing housing (14B) form a common mount for the camshaft (12); or at least one positioning element (40, 42) which is installed between the first bearing housing (14) or the second bearing housing (14B) on one side and the cylinder head (16) or support frame (30) on the other side for positioning the first or of the second bearing housing (14; 14V) relative to the cylinder head (16) or support frame (30), or the device (10) does not contain a positioning element for positioning the first or second bearing housing (14; 14V) relative to the cylinder head (16) or support frame frames (30); or one valve lever shaft (20) for rotatably mounting the valve lever, in which the first fastener (18) further secures the valve lever shaft (20) to the cylinder head (16) or support frame (30). 2. The device (10; 110) according to claim 1, in which the first fastener (18) is the first fastening screw; and/or the first fastening means (18) secures the first bearing housing (14; 14A) to the cylinder head (16) or the support frame (30) with positive and positive locking; and/or the first fastener (18) is a collapsible fastener. 3. Apparatus (10) according to claim 1 or 2, wherein the first bearing housing (14) forms an integral bearing support for mounting the camshaft (12). 4. The device (110) according to one of paragraphs. 1-3, in which the first bearing housing (14A) and the second bearing housing (14B) are attached to each other by means of the second fastening means (52), namely the second fastening screw, preferably positively and positively. 5. The device (110) according to one of paragraphs. 1-4, in which the first fastening means (18) further secures the second bearing housing (14B) to the cylinder head (16) or to the support frame (30). 6. The device (110) according to one of paragraphs. 1-5, which additionally has at least one positioning element (54, 56), which is installed between the first bearing housing (14A) and the second bearing housing (14B) for positioning the first bearing housing (14A) relative to the second bearing housing (14B ). 7. The device (110) according to claim 6, in which at least one positioning element (54, 56) installed between the first bearing housing (14A) and the second bearing housing (14B) contains one positioning pin, one unloading sleeve, surrounding the first fastening means (18), and/or one unloading sleeve surrounding the second fastening means (52). 8. The device (10) according to claim 1, in which there is at least one positioning element (40, 42) located between the first or second bearing housing (14; 14B) and the cylinder head (16) or support frame (30) , one positioning pin and/or one relief sleeve that surrounds the first fastener (18). 9. The device (10; 110) according to claim 1, in which the first bearing housing (14; 14A) has a mount for the valve arm axle (20) which is preferably mounted on the side of the first bearing housing (14; 14A) opposite the cylinder head (16) or support frame (30); and/or the longitudinal channel for lubricating fluid (34) of the axis of the valve lever (20) is fluidly connected to the mount (22; 22A) for the camshaft (12) of the first bearing housing (14; 14A), preferably through the outlet channel (38) of the first bearing housing ( 14; 14A) and the outlet channel (36) of the valve lever axle (20). 10. The device (10; 110) according to one of the previous paragraphs, in which the support frame (30) or the cylinder head (16) has a hole (26), in particular a blind or through hole, with a thread for positive and positive locking of the first bearing housing (14; 14A) on the support frame (30) or cylinder head (16) by means of the first fixing means (18). 11. The device (10; 110) according to one of the previous paragraphs, in which the first bearing housing (14; 14A) is made asymmetrically relative to the vertical plane through the central longitudinal axis of the attachment (22; 22A) for the camshaft (12); and/or the first fastening means (18) generates a tilting moment for bearing the first bearing housing (14; 14A) against the contact area (29) of the cylinder head (16) or the support frame (30). 12. Vehicle, in particular a commercial vehicle, with the device (10; 110) according to one of the previous paragraphs.

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