Thrust structure of engine cam shaft
A camshaft and engine technology, applied in the direction of engine components, machines/engines, connecting components, etc., can solve the problems of increasing the size of the blank, increasing the difficulty of manufacturing, and increasing the size of the whole machine, so as to reduce the size of the blank and save Thickness space, the effect of reducing the size of the whole machine
Active Publication Date: 2012-01-25
WUXI KIPOR POWER CO LTD
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Problems solved by technology
[0002] At present, the known engine camshaft thrust structure is that one end of the camshaft is provided with an annular protrusion, the annular protrusion is stuck on the outer end surface of the body, a thrust plate is covered on the annular protrusion, and then the thrust plate is locked. On the engine block, thereby limiting the movement of the camshaft in the axial direction relative to the block
This kind of thrust structure is simple, compact, and more general, but setting the ring-shaped protrusion on the camshaft will increase the size of the blank and increase the difficulty of manufacturing; The increase, the structure is not streamlined enough
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[0011] The present invention will be further described below in conjunction with specific drawings and embodiments.
[0012] Such as figure 1 As shown, the camshaft 1 is installed on the engine body 2, the gear 3 is installed on the outer end of the camshaft 1, and the outer circumference of the gear 3 near the end of the engine body 2 is provided with an annular groove 3a; the thrust plate 4 is fixed on the engine body by bolts 5 2, the thrust plate 4 is provided with a positioning lip 4a that is snapped into the annular groove 3a, so that the thrust plate 4 fixed on the engine body 2 limits the relative movement of the camshaft 1 in the axial direction. Movement of the engine block 2.
[0013] Such as figure 1 As shown, the side of the positioning convex edge 4a of the thrust plate 4 corresponding to the annular groove 3a is concave arc-shaped, so as to adapt to the shape of the annular groove 3a. An oil channel is opened in the thrust plate 4, and the oil channel is used...
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The invention relates to a thrust structure of an engine cam shaft. According to the technical scheme provided by the invention, in the thrust structure of the engine cam shaft, the cam shaft is installed on the engine body, and the outer end of the cam shaft is provided with a gear. The thrust structure is characterized in that the periphery of one end of the engine body, adjacent to the gear, is provided with an annular groove, a thrust plate is fixed on the engine body, and a positioning convex edge clamped in the annular groove is arranged on the thrust plate. By adopting the thrust structure of the cam shaft provided by the invention, the whole diameter of the cam shaft can be lessened and then the blank size can be lessened and the manufacturing difficulty can be reduced; meanwhile,as the annular bulge of the cam shaft is eliminated, the thickness space of the thrust plate can be reduced, the distance between the end face of the cam shaft and the engine body can be shortened and then the size of the complete machine can be reduced.
Description
technical field [0001] The invention belongs to the technical field of engines, and in particular relates to a thrust structure for limiting axial movement of an engine camshaft relative to an engine body. Background technique [0002] At present, the known engine camshaft thrust structure is that one end of the camshaft is provided with an annular protrusion, the annular protrusion is stuck on the outer end surface of the body, a thrust plate is covered on the annular protrusion, and then the thrust plate is locked. On the body of the engine, the movement of the camshaft relative to the body in the axial direction is limited. This kind of thrust structure is simple, compact, and more general, but setting an annular protrusion on the camshaft will increase the size of the blank and increase the difficulty of manufacturing; The increase, the structure is not streamlined enough. Contents of the invention [0003] The purpose of the present invention is to overcome the sho...
Claims
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Login to View More IPC IPC(8): F16B21/10F16H57/04
CPCF16B9/023F01L2001/0476F01L1/047F16B9/056
Inventor 肖亨琳尤良盛
Owner WUXI KIPOR POWER CO LTD