CN218376596U - Mechanical camshaft with high transmission stability - Google Patents
Mechanical camshaft with high transmission stability Download PDFInfo
- Publication number
- CN218376596U CN218376596U CN202222720526.XU CN202222720526U CN218376596U CN 218376596 U CN218376596 U CN 218376596U CN 202222720526 U CN202222720526 U CN 202222720526U CN 218376596 U CN218376596 U CN 218376596U
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- end shaft
- shaft
- mandrel
- driven
- camshaft
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Abstract
The utility model discloses a mechanical camshaft that transmission stability is strong, it includes: the device comprises a mandrel, a driving end shaft and a driven end shaft, wherein one end of the mandrel is provided with the driving end shaft, and the other end of the mandrel is provided with the driven end shaft; a flat groove part arranged at the bottom of the driving end shaft; arc groove parts arranged on two sides of the top of the driving end shaft; the mounting hole is arranged in the center of the driven end shaft; the circular groove is annularly arranged on the end surface of the driven end shaft; wherein, the dabber middle section has exhaust cam, the cam that admits air that the interval set up, and strengthens the end axle. The utility model discloses an at the drive shaft end of dabber setting tongue portion and the arc groove portion of both sides, driven gear cover is installed in the cooperation, accomplishes the assembly, realizes three point location, and plane and cambered surface cooperation, and the transmission is more stable, avoids installing trouble in the past, the trouble of transmission poor stability.
Description
Technical Field
The utility model belongs to the technical field of the camshaft, specifically speaking relates to a mechanical camshaft that transmission stability is strong.
Background
The camshaft is a component in a piston engine. Its function is to control the opening and closing action of the valve. Although the rotational speed of the camshaft in a four-stroke engine is half of the rotational speed of the crankshaft (in a two-stroke engine, the rotational speed of the camshaft is the same as the rotational speed of the crankshaft), the camshaft is still usually high in rotational speed and is required to bear a large torque, so that the camshaft is required to be high in strength and support in design, and the camshaft is generally made of high-quality alloy steel or alloy steel. Because the valve motion law is related to the power and the running characteristics of an engine, the camshaft design occupies a very important position in the design process of the engine.
Current camshaft is mostly the integrated into one piece structure, and its one end portion sets up the convex key and assembles the transmission with the gear to accomplish the operation of camshaft. Then single convex key cooperation, to the torsion of camshaft, transmission stability is relatively poor, and after the assembly, the easy production damage of working for a long time, and when the damage appears in the camshaft, need change whole camshaft, increase the cost of maintaining, be unfavorable for the enterprise development.
Therefore, a camshaft which is convenient to install and has strong transmission stability is urgently needed at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem that a mechanical camshaft that transmission stability is strong is provided, through the arc groove portion that sets up slot part and both sides at the drive shaft end of dabber, the driven gear lid is installed in the cooperation, accomplishes the assembly, realizes three point location, and plane and cambered surface cooperation, and the transmission is more stable, avoids installing in the past troublesome, the trouble of transmission poor stability.
In order to solve the technical problem, the utility model discloses a mechanical camshaft that transmission stability is strong, it includes:
the device comprises a mandrel, a driving end shaft and a driven end shaft, wherein one end of the mandrel is provided with the driving end shaft, and the other end of the mandrel is provided with the driven end shaft;
a flat groove part arranged at the bottom of the driving end shaft;
arc groove parts arranged on two sides of the top of the driving end shaft;
the mounting hole is arranged in the center of the driven end shaft;
the circular groove is annularly arranged on the end face of the driven end shaft;
wherein, the dabber middle section has the exhaust cam, the cam that admits air that the interval set up, and strengthens the end axle.
According to the utility model discloses an embodiment, wherein above-mentioned drive end axle installation gear cover, gear cover pastes tight slot part and arc slot part through the convex key cooperation.
According to the utility model discloses an embodiment, wherein above-mentioned drive end axle central authorities set up the locating hole, the center pin of locating hole axial fixed gear apron.
According to the utility model discloses an embodiment, wherein above-mentioned enhancement end axle footpath is greater than the dabber axle footpath, and interval exhaust cam and air inlet cam.
According to the utility model relates to an embodiment, wherein above-mentioned driven end axle installation protective cover, protective cover pass through the fix with screw in mounting hole, and the built-in sealing washer of circular slot, end to the protective cover.
Compared with the prior art, the utility model discloses can obtain including following technological effect:
through the arc slot portion of setting slot portion and both sides at the drive shaft end of dabber, the driven gear lid is installed in the cooperation, accomplishes the assembly, realizes three point location, and plane and cambered surface cooperation, and the transmission is more stable, avoids installing trouble in the past, the trouble of transmission poor stability.
Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
FIG. 1 is a schematic view of a mechanical camshaft with high transmission stability according to an embodiment of the present invention;
fig. 2 is a schematic view of a driving end shaft according to an embodiment of the present invention.
Reference numerals
The structure comprises a mandrel 10, a driving end shaft 20, a driven end shaft 30, a flat groove part 41, an arc groove part 42, a positioning hole 43, a mounting hole 50, a circular groove 60, an exhaust cam 71, an air inlet cam 72 and a reinforcing end shaft 73.
Detailed Description
The following detailed description will be made with reference to the accompanying drawings and examples, so that how to implement the technical means of the present invention to solve the technical problems and achieve the technical effects can be fully understood and implemented.
Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic view of a mechanical camshaft with high transmission stability according to an embodiment of the present invention; fig. 2 is a schematic view of a driving end shaft according to an embodiment of the present invention.
As shown in the figure, a mechanical camshaft with strong transmission stability comprises: the device comprises a mandrel 10, wherein one end of the mandrel 10 is provided with a driving end shaft 20, and the other end of the mandrel 10 is provided with a driven end shaft 30; a flat groove portion 41 provided at the bottom of the drive end shaft 20; arc groove parts 42 arranged at two sides of the top of the driving end shaft 20; a mounting hole 50 provided at the center of the driven end shaft 30; a circular groove 60 annularly arranged on the end face of the driven end shaft 30; the central section of the mandrel 10 is provided with an exhaust cam 71, an intake cam 72 and a reinforcing end shaft 73 which are arranged at intervals.
In one embodiment of the present invention, the mandrel 10 is integrally formed, and the exhaust cam 71, the intake cam 72, and the plurality of reinforcing end shafts 73 are formed by turning at the center thereof, and the driving end shaft 20 and the driven end shaft 30 are provided at both ends thereof. The exhaust cam 71 and the intake cam 72 control the opening and closing of the valve, and the shaft diameter of the reinforcing end shaft 73 is changed to form a stepped shaft, thereby improving strength.
The outer wall of the driving end shaft 20 is provided with a flat groove part 41 at the bottom, and arc groove parts 42 are arranged on two sides of the top, so that three-point positioning is realized, the mounting is convenient, and the stability is improved. Further, the driving end shaft 20 is provided with a gear cover, the gear cover completes power transmission and is tightly attached to the flat groove portion 41 and the arc groove portion 42 through convex key matching, namely, the inner ring of the gear cover is provided with convex keys corresponding to the flat groove portion 41 and the arc groove portion 42, so that assembly is completed, and power transmission is realized. In addition, the plane of the flat groove part 41 and the cambered surface of the cambered groove part 42 are mutually matched, so that the installation is more stable, the power torsion is more stable, and the durability is strong.
In a preferred embodiment, a positioning hole 43 is formed in the center of the driving end shaft 20, the positioning hole 43 axially fixes the central shaft of the gear cover plate, and the end face is pressed to complete positioning and installation.
The utility model discloses a driven dead axle 30 terminal surface center sets up mounting hole 50, and the circular slot 60 is seted up to the outer lane, borrows this at driven dead axle 30 department installation protective cover, cooperation installation bearing. Further, the protective cover is fixed in the mounting hole 50 through the screw, forms the terminal surface protection, and the circular groove 60 embeds the sealing washer, ends the protective cover, strengthens the leakproofness, improves the flexible degree of cooperation that ends and support.
Furthermore, the shaft diameter of the reinforcing end shaft 73 is larger than that of the mandrel 10, and the exhaust cam 71 and the intake cam 72 are spaced, so that the shaft diameter is increased, and the strength of the mandrel 10 is enhanced.
To sum up, the utility model discloses a set up the arc groove portion 42 of slot part 41 and both sides at the drive axle head 20 of dabber 10, the driven gear cover is installed in the cooperation, accomplishes the assembly, realizes three point fixing, and plane and cambered surface cooperation, and the transmission is more stable, avoids installing trouble in the past, the trouble of transmission poor stability.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (5)
1. A mechanical camshaft with high transmission stability is characterized by comprising:
the device comprises a mandrel, a driving end shaft and a driven end shaft, wherein one end of the mandrel is provided with the driving end shaft, and the other end of the mandrel is provided with the driven end shaft;
the flat groove part is arranged at the bottom of the driving end shaft;
the arc groove parts are arranged on two sides of the top of the driving end shaft;
the mounting hole is arranged in the center of the driven end shaft;
the circular groove is annularly arranged on the end surface of the driven end shaft;
the middle section of the mandrel is provided with an exhaust cam, an intake cam and a reinforcing end shaft which are arranged at intervals.
2. The mechanical camshaft of claim 1, wherein the drive end shaft mounts a gear cover that fits against the flat slot portion and the arcuate slot portion by a spline fit.
3. The mechanical camshaft with high transmission stability of claim 1, wherein the driving end shaft is centrally provided with a positioning hole, and the positioning hole axially fixes the central shaft of the gear cover plate.
4. The mechanical camshaft of claim 1, wherein the reinforced end shaft diameter is larger than the spindle shaft diameter and separates the exhaust cam and the intake cam.
5. The mechanical camshaft with high transmission stability of claim 1, wherein the driven end shaft is provided with a protecting cover, the protecting cover is fixed to the mounting hole through a screw, and the circular groove is internally provided with a sealing ring to stop against the protecting cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222720526.XU CN218376596U (en) | 2022-10-17 | 2022-10-17 | Mechanical camshaft with high transmission stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222720526.XU CN218376596U (en) | 2022-10-17 | 2022-10-17 | Mechanical camshaft with high transmission stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218376596U true CN218376596U (en) | 2023-01-24 |
Family
ID=84930139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222720526.XU Active CN218376596U (en) | 2022-10-17 | 2022-10-17 | Mechanical camshaft with high transmission stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218376596U (en) |
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2022
- 2022-10-17 CN CN202222720526.XU patent/CN218376596U/en active Active
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