Method for assembling a camshaft
A technology of camshafts and components, applied in the direction of cams, couplings, valve devices, etc., can solve problems such as deviation, achieve the effect of increasing strength and realizing automation
Active Publication Date: 2015-11-04
THYSSENKRUPP PRESTA TECCENTER AG
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Problems solved by technology
This play therefore leads to additional moments which change the angular position of the components during pressing or pressing and thus cause deviations from the desired angular position
Method used
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[0046] in figure 1 Among them, the cylinder head cover 1 having the bearing housing 3 is shown. The diagram has been kept purely schematic, and no further components or details of the cylinder head cover 1 are shown for ease of understanding. The support shaft 5 is held in the bearing housing 3. The supporting shaft 5 has a bearing portion 7 which together with the bearing receiving portion 3 forms a sliding bearing for supporting the shaft 5. The bearing portion of the support shaft has an outer diameter D3. The support shaft has a diameter DT. The diameter D3 of the bearing portion may be greater than the diameter of the support shaft (such as figure 1 Shown). Alternatively, the two diameters may also be equal in size or the diameter D3 of the bearing part may also be smaller than the diameter DT of the support shaft. This is the case, for example, whenever the bearing position has been determined, for example by grinding.
[0047] The support shaft 5 also has a first enla...
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The invention relates to a method for assembling a camshaft (2) from a support shaft (5) and components (17) to be connected to the support shaft (5), said components (17) having through-openings (19) for receiving the support shaft (5). The invention also relates to a support shaft (5) which has first diametric enlargements (11) in first portions (9) in which the components (17) are to be fastened, and second diametric enlargements (15) in second portions (13) in which the components (17) are to be preliminarily positioned, the diameter (D2) in the second portions (13) being smaller than the diameter (D1) in the first portions (9). In a further step the support shaft (5) is cooled and / or the components (17) are heated such that the first and second diametric expansions (11, 13) of the support shaft (5) can be pushed through the through-openings (19) of the components (17). The support shaft (5) is then pushed through the through-openings (19) so that every component (17) is associated with a second portion. The support shaft (5) is then heated and / or the components (17) are cooled such that the diameter (DB) of the through-openings (19) of the components (17) is smaller than the diameter (D2) of the associated second diametric expansions (15). A predetermined overlap of the components (17) with the second portions (13) associated with the components (17) is then produced such that the components (17) are releasably held in the associated second portions (13). The components (17) are then pressed onto the first diametric expansions (11) associated therewith or the first diametric expansions (11) are press-fitted into the associated through-openings (19) of the components (17), the respective required angular position of every component (17) relative to the support shaft (5) being adjusted prior to, during or after pressing or press-fitting.
Description
Technical field [0001] The present invention relates to a method for assembling a camshaft and an engine module for a motor vehicle engine, the engine including a cylinder head cover and a camshaft rotatably mounted on the cylinder head cover. The present invention also relates to camshafts formed exclusively by these methods. Background technique [0002] In order to reduce the assembly work involved in assembling the motor vehicle engine and reduce the storage and logistics costs caused by engine components, the assembled engine modules are directly provided by the supplier to the assembly line of the automobile manufacturer. Such an engine module is composed of, for example, a cylinder head cover and a camshaft installed therein. In the process of assembling the engine, these are subsequently necessary for fixing the module to the cylinder head cover of the engine. [0003] The assembly method for the engine module composed of the cylinder head cover and the camshaft installed...
Claims
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IPC IPC(8): B23P11/00B23P11/02F01L1/047F16H53/02
CPCB23P11/00B23P11/025B23P2700/02F01L1/047F01L2001/0471F01L2001/0473F01L2103/00F01L2303/00F16D1/0858Y10T29/49295
Inventor 安德列亚斯·施塔佩尔曼彼得·维斯纳法尔克·穆斯费尔特
Owner THYSSENKRUPP PRESTA TECCENTER AG