High-lubrication environment-friendly cam shaft and machining device thereof

Abstract

The invention discloses a high-lubrication environment-friendly cam shaft and a machining device thereof. The high-lubrication environment-friendly cam shaft comprises a rotating shaft and a cam arranged on the rotating shaft. Oil grooves are formed in the two sides of the cam and surround the side edge contour of the cam, the oil grooves in the two sides are connected through a plurality of through holes, a plurality of oil outlet holes are formed in the surface of the cam, and one ends of the oil outlet holes are communicated with the through holes. The oil grooves are formed in the two sides of the cam, lubricating oil sprayed or splashed on the cam shaft in an engine can be reserved in the oil grooves and the oil outlet holes, the surface of the cam has sufficient lubricating oil, and therefore the high lubricity is achieved, abrasion to the surface of the cam is reduced, rotation smoothness is improved, and the oil-saving and environment-friendly performance is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of camshafts, and in particular relates to a high-lubrication and environment-friendly camshaft and a processing device thereof. Background Art

[0002] Cam scratches are small scratches on the throttle valve along the sliding direction, which then develop into serious adhesion damage. This is mainly due to poor lubrication under high contact pressure, which causes local direct contact of the friction surface, resulting in metal adhesion and surface material transfer. The scratched cam and throttle valve will produce noise, poor coordination, increased wear, changes in throttle control, and increased fuel consumption. In order to improve lubrication, a high-lubrication and environmentally friendly camshaft and its processing device are provided. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a high-lubrication and environmentally friendly camshaft and a processing device thereof, so as to solve the problem of abrasion caused by insufficient lubrication of the camshaft in the prior art.

[0004] In order to solve the above technical problems, the present invention discloses a high-lubrication and environmentally friendly camshaft, comprising: a rotating shaft and a cam arranged on the rotating shaft; oil grooves are provided on both sides of the cam, the oil grooves surround its side contour, and the oil grooves on both sides are connected by multiple through holes, and the surface of the cam is provided with multiple oil outlet holes, one end of the oil outlet hole is connected to the through hole.

[0005] Furthermore, the profile of the outer side wall of the oil groove is smaller than the profile of the cam.

[0006] Furthermore, the six through holes are distributed on the cam at intervals along the axial direction.

[0007] Furthermore, the oil outlet hole is in a conical shape, and the diameter of the cam surface is larger than the inner diameter.

[0008] A positioning and punching tool for making oil outlet holes of a high-lubrication and environmentally friendly camshaft comprises: a first clamp and a second clamp, the first clamp and the second clamp have the same shape; the inner sides of the first clamp and the second clamp are provided with a limit groove and a fixing hole, the limit groove is provided with a through hole, the contour of the limit groove is the same as the edge contour of the cam, the first clamp and the second clamp are respectively penetrated at the two ends of the rotating shaft to clamp the cam, the two sides of the cam are stuck in the limit groove, and the two are fastened by bolts and nuts; the first clamp is hexagonal, the axes of the upper and lower oil outlet holes of the cam are respectively perpendicular to the top edge and the bottom edge of the clamp, the upper left side of the clamp is perpendicular to the axis of the lower right oil outlet hole of the cam, the lower left side of the clamp is perpendicular to the axis of the upper right oil outlet hole of the cam, and the axes of the upper left and lower left oil outlet holes of the cam are respectively perpendicular to the upper right edge and the lower right edge of the clamp.

[0009] Compared with the prior art, the present application can obtain the following technical effects: The present invention provides oil grooves on both sides of the cam, and the lubricating oil sprayed or splashed on the camshaft in the engine will remain in the oil grooves and the oil outlet holes, so that the cam surface has sufficient lubricating oil, thereby achieving high lubricity, reducing the scratches on the cam surface and improving the smoothness of rotation to achieve fuel-saving and environmentally friendly performance.

[0010] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 is a schematic diagram of a camshaft according to an embodiment of the present invention; Figure 2 is a schematic diagram of a camshaft and a positioning tool according to an embodiment of the present invention; Figure 3 is an exploded schematic diagram of a positioning tool according to an embodiment of the present invention; Figure 4 It is a schematic diagram of positioning of a positioning fixture and an oil outlet hole according to an embodiment of the present invention. Figure ID

[0012] Rotating shaft 1, cam 2, oil groove 3, through hole 4, oil outlet hole 5, clamping plate 1 6, clamping plate 2 7, limiting groove 8, fixing hole 9, through hole 10, bolt 11, nut 12. DETAILED DESCRIPTION

[0013] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0014] Please refer to Figures 1 to 4 , Figure 1 is a schematic diagram of a camshaft according to an embodiment of the present invention; Figure 2 is a schematic diagram of a camshaft and a positioning tool according to an embodiment of the present invention; Figure 3 is an exploded schematic diagram of a positioning tool according to an embodiment of the present invention; Figure 4 It is a schematic diagram of positioning of a positioning fixture and an oil outlet hole according to an embodiment of the present invention.

[0015] A high-lubrication, environmentally friendly camshaft comprises: a rotating shaft 1 and a cam 2 arranged on the rotating shaft 1; oil grooves 3 are arranged on both sides of the cam 2, the oil grooves 3 surround the side contour of the cam 2, and the oil grooves 3 on both sides are connected by multiple through holes 4; a plurality of oil outlet holes 5 are arranged on the surface of the cam 2, and one end of the oil outlet hole 5 is connected to the through hole 4.

[0016] The outer wall of the oil groove 3 has a smaller profile than the cam 2; six through holes 4 are axially spaced and distributed on the cam 2; the oil outlet hole 5 is conical, and the diameter of the cam 2 surface is larger than the inner diameter.

[0017] The positioning punching tool for making the oil outlet hole of the high-lubrication and environmentally friendly camshaft includes: a clamping plate 1 6 and a clamping plate 2 7, and the shapes of the clamping plate 1 6 and the clamping plate 2 7 are the same; the inner sides of the clamping plate 1 6 and the clamping plate 2 7 are provided with a limiting groove 8 and a fixing hole 9, and the limiting groove 8 is provided with a through hole 10, and the contour of the limiting groove 8 is the same as the edge contour of the cam 2. The clamping plate 1 6 and the clamping plate 2 7 are respectively penetrated at both ends of the rotating shaft 1 to clamp the cam 2, and the two sides of the cam 2 are stuck in the limiting groove 8, and the two are fastened by bolts 11 and nuts 12; the clamping plate 1 6 is hexagonal, and the axes of the upper and lower oil outlet holes 5 of the cam 2 are respectively perpendicular to the top and bottom edges of the clamping plate, and when drilling the upper and lower oil outlet holes 5 of the cam 2, it is only necessary to align the top edge of the clamping plate with the bottom edge of the clamping plate. The bottom edge is placed on the workbench of the drilling rig, and the oil outlet hole 5 at the corresponding position can be drilled; the upper left edge of the splint is perpendicular to the axis of the lower right oil outlet hole 5 of the cam 2. When drilling the lower right oil outlet hole 5 of the cam 2, you only need to place the upper left edge of the splint on the workbench of the drilling rig to drill the oil outlet hole 5 at the corresponding position; the lower left edge of the splint is perpendicular to the axis of the upper right oil outlet hole 5 of the cam 2. When drilling the upper right oil outlet hole 5 of the cam 2, you only need to place the lower left edge of the splint on the workbench of the drilling rig to drill the oil outlet hole 5 at the corresponding position; the axes of the upper left and lower left oil outlet holes 5 of the cam 2 are respectively perpendicular to the upper right and lower right edges of the splint, and the drilling method is the same as the upper right and lower right oil outlet holes 5 of the cam 2.

[0018] In summary, the present invention sets oil grooves 3 on both sides of the cam 2, and the lubricating oil sprayed or splashed on the camshaft in the engine will remain in the oil groove 3 and the oil outlet hole 5, so that the surface of the cam 2 has sufficient lubricating oil, thereby achieving high lubricity, reducing the scratches on the surface of the cam 2 and improving the smoothness of rotation to achieve fuel-saving and environmentally friendly performance.

[0019] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. Changes and variations made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A highly lubricating and environmentally friendly camshaft, comprising: A rotating shaft and a cam disposed on the rotating shaft; It is characterized in that oil grooves are provided on both sides of the cam, the oil grooves surround the side contour of the cam, the oil grooves on both sides are connected by multiple through holes, and the surface of the cam is provided with multiple oil outlet holes, one end of the oil outlet hole is connected to the through hole.

2. The highly lubricating and environmentally friendly camshaft according to claim 1, characterized in that: The profile of the outer side wall of the oil groove is smaller than the profile of the cam.

3. The highly lubricating and environmentally friendly camshaft according to claim 1, characterized in that: The six through holes are distributed on the cam at intervals along the axial direction.

4. The highly lubricating and environmentally friendly camshaft according to claim 1, characterized in that: The oil outlet hole is in a conical shape, and the diameter of the cam surface is larger than the inner diameter.

5. A positioning and punching tool for producing the oil outlet hole of the high-lubrication and environmentally friendly camshaft in claim 1, comprising: The shapes of the splint 1 and the splint 2 are the same; It is characterized in that the inner sides of the clamping plate 1 and the clamping plate 2 are provided with a limiting groove and a fixing hole, and a through hole is provided in the limiting groove, the contour of the limiting groove is the same as the edge contour of the cam, the clamping plate 1 and the clamping plate 2 are respectively penetrated at the two ends of the rotating shaft to clamp the cam, and the two sides of the cam are stuck in the limiting groove, and the two are fastened by bolts and nuts; the clamping plate 1 is hexagonal, and the axes of the upper and lower oil outlet holes of the cam are respectively perpendicular to the top and bottom edges of the clamping plate, the upper left edge of the clamping plate is perpendicular to the axis of the lower right oil outlet hole of the cam, the lower left edge of the clamping plate is perpendicular to the axis of the upper right oil outlet hole of the cam, and the axes of the upper left and lower left oil outlet holes of the cam are respectively perpendicular to the upper right edge and lower right edge of the clamping plate.

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