CN212959489U - Main shaft of forced supercharging air inlet device of automobile engine - Google Patents
Main shaft of forced supercharging air inlet device of automobile engine Download PDFInfo
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- CN212959489U CN212959489U CN202021848622.7U CN202021848622U CN212959489U CN 212959489 U CN212959489 U CN 212959489U CN 202021848622 U CN202021848622 U CN 202021848622U CN 212959489 U CN212959489 U CN 212959489U
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- shaft section
- main shaft
- shaft
- oil outlet
- automobile engine
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Abstract
The utility model provides a main shaft of a forced supercharging air inlet device of an automobile engine, which comprises a first shaft section, a second shaft section, a third shaft section and a fourth shaft section which are coaxially arranged from left to right, wherein the first shaft section is provided with an external thread structure, and a tool withdrawal groove is arranged between the external thread structure and the second shaft section; be equipped with first step and second step on the third shaft section, the second step set up the third shaft section with between the fourth shaft section, be equipped with the inlet port on the right-hand member face of fourth shaft section, the inlet port extends to the third shaft section along the axial of main shaft in, is equipped with radial oil outlet on the third shaft section, and the inlet port is connected to the oil outlet, and the oil outlet setting is in between first step and the second step. The utility model discloses automobile engine forces pressure boost air inlet unit's main shaft structural design is novel, the drive ratio is big, small in size, lubricated effect is good, be convenient for process and economic value height.
Description
Technical Field
The utility model relates to a booster for car, in particular to automobile engine forces pressure boost air inlet unit's main shaft.
Background
Automobile supercharger: supercharging is a technique of compressing air in advance before the air is supplied into a cylinder to increase the air density and increase the intake air amount. Aims at increasing the aeration quantity, improving the power, improving the economy and improving the discharge. The main shaft of the supercharger drives the main shaft to rotate through the driving mechanism, and then the main shaft drives the impeller to rotate, so that air is supplied to the turbine to be increased. The spindle structures used in the market at present are various, but the following disadvantages are generally existed: 1) the volume is large, the processing is inconvenient, the volume of the whole device is increased, and the economic cost is increased invisibly; 2) the transmission ratio between the traditional main shaft and the belt wheel is small, so that the supercharging effect is influenced; 3) the oil inlet and the oil outlet of lubricating oil are not good, so that the lubricating effect is not good.
SUMMERY OF THE UTILITY MODEL
【1】 Technical problem to be solved
The to-be-solved technical problem of the utility model is to provide a structural design is novel, transmission ratio is big, small in size, lubricated effect is good, be convenient for processing and automobile engine forces pressure boost air inlet unit's main shaft that economic value is high.
【2】 Technical scheme for solving problems
The utility model provides a main shaft of a forced supercharging air inlet device of an automobile engine, which comprises a first shaft section, a second shaft section, a third shaft section and a fourth shaft section which are coaxially arranged from left to right, wherein the first shaft section is provided with an external thread structure, and a tool withdrawal groove is arranged between the external thread structure and the second shaft section; be equipped with first step and second step on the third shaft section, first step with be equipped with first interval between the second step, the second step sets up the third shaft section with between the fourth shaft section, be equipped with the inlet port on the right-hand member face of fourth shaft section, the inlet port along the axial extension of main shaft extends to in the third shaft section, be equipped with radial oil outlet on the third shaft section, the oil outlet is connected the inlet port, the oil outlet sets up first step with between the second step.
Furthermore, a chamfer is arranged on the right end face of the oil inlet hole.
Furthermore, the oil outlet holes are four in number, the four oil outlet holes are arranged around the axis of the oil inlet hole in a pairwise symmetrical mode, a second interval is arranged between the two oil outlet holes in the same radial direction on the left side and the first step, and a third interval is arranged between the two oil outlet holes in the same radial direction on the right side and the second step.
Further, the second pitch is equal to the third pitch
Further, the outer diameter of the first shaft section is smaller than that of the fourth shaft section, the outer diameter of the fourth shaft section is smaller than that of the second shaft section, and the outer diameter of the second shaft section is smaller than that of the third shaft section.
Further, the first distance is greater than or equal to one fourth of the total length of the main shaft and less than or equal to two fifths of the total length of the main shaft.
【3】 Advantageous effects
The utility model discloses automobile engine forces pressure boost air inlet unit's main shaft structural design is novel, the drive ratio is big, small in size, lubricated effect is good, be convenient for process and economic value height.
Drawings
FIG. 1 is a perspective view of a main shaft of the forced supercharging air inlet device of the automobile engine of the present invention;
FIG. 2 is a front view of the main shaft of the forced supercharging air inlet device of the automobile engine of the present invention;
fig. 3 is a right side view of the main shaft of the forced supercharging air inlet device of the automobile engine of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 3, the present invention provides a main shaft of a forced supercharging air inlet device for an automobile engine, which includes a first shaft section 3, a second shaft section 2, a third shaft section 1 and a fourth shaft section 4 coaxially disposed from left to right, wherein the outer diameter of the first shaft section 3 is smaller than the outer diameter of the fourth shaft section 4, the outer diameter of the fourth shaft section 4 is smaller than the outer diameter of the second shaft section 2, and the outer diameter of the second shaft section 2 is smaller than the outer diameter of the third shaft section 1; the first shaft section 3 is provided with an external thread structure 31, the external thread structure 31 is used for connecting an impeller in a turbine and is locked with the impeller through a nut, the impeller is driven to rotate through the rotation of the main shaft, a tool withdrawal groove 32 is arranged between the external thread structure 31 and the second shaft section 2, and the tool withdrawal groove 32 is arranged to facilitate the processing of the external thread structure 31; a first step 11 and a second step 12 are arranged on the third shaft section 1, a first distance is arranged between the first step 11 and the second step 12, the second step 12 is arranged between the third shaft section 1 and the fourth shaft section 4, the first step 11 and the second step 12 are used for being matched with a driving wheel for driving the main shaft to rotate, and the driving wheel is clamped between the first step 11 and the second step 12 and drives the main shaft to rotate through the rotation of the driving wheel; an oil inlet hole 41 is formed in the right end face of the fourth shaft section 4, the oil inlet hole 41 extends into the third shaft section 1 along the axial direction of the main shaft, a radial oil outlet hole 13 is formed in the third shaft section 1, the oil outlet hole 13 is connected with the oil inlet hole 41, and the oil outlet hole 13 is formed between the first step 11 and the second step 12; the advantage of this configuration is that the lubricant oil enters the oil inlet hole 41 and flows out from the oil outlet hole 13 to the space between the driving wheel and the main shaft as the main shaft rotates.
In order to facilitate the entry of the lubricant, a chamfer 42 is provided on the right end surface of the oil inlet hole 41 in this embodiment.
In order to improve the lubricating effect, in this embodiment, the number of the oil outlets 13 is four, the four oil outlets 13 are symmetrically arranged in pairs around the axis of the oil inlet 41, a second distance is arranged between the two oil outlets 13 in the same radial direction on the left side and the first step 11, and a third distance is arranged between the two oil outlets 13 in the same radial direction on the right side and the second step 12; further, the second pitch is equal to the third pitch.
In order to improve the rotating effect of the spindle, in this embodiment, the first distance is greater than or equal to one fourth of the total length of the spindle and less than or equal to two fifths of the total length of the spindle, and the first distance is preferably one third of the total length of the spindle.
The utility model discloses automobile engine forces pressure boost air inlet unit's main shaft structural design is novel, the drive ratio is big, small in size, lubricated effect is good, be convenient for process and economic value height.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a main shaft of forced pressure boost air inlet unit of automobile engine which characterized in that: the tool comprises a first shaft section, a second shaft section, a third shaft section and a fourth shaft section which are coaxially arranged from left to right, wherein an external thread structure is arranged on the first shaft section, and a tool withdrawal groove is arranged between the external thread structure and the second shaft section; be equipped with first step and second step on the third shaft section, first step with be equipped with first interval between the second step, the second step sets up the third shaft section with between the fourth shaft section, be equipped with the inlet port on the right-hand member face of fourth shaft section, the inlet port along the axial extension of main shaft extends to in the third shaft section, be equipped with radial oil outlet on the third shaft section, the oil outlet is connected the inlet port, the oil outlet sets up first step with between the second step.
2. The main shaft of a forced supercharging air intake apparatus of an automobile engine according to claim 1, characterized in that: and a chamfer is arranged on the right end face of the oil inlet hole.
3. The main shaft of a forced supercharging air intake apparatus of an automobile engine according to claim 1, characterized in that: the oil outlet hole is four in number, four the oil outlet hole winds the two bisymmetry settings of axis of inlet port, the same radial two in left side the oil outlet hole with be equipped with the second interval between the first step, the same radial two in right side the oil outlet hole with be equipped with the third interval between the second step.
4. The main shaft of a forced supercharging air intake apparatus for an automobile engine according to claim 3, characterized in that: the second pitch is equal to the third pitch.
5. The main shaft of a forced supercharging air intake apparatus of an automobile engine according to claim 1, characterized in that: the outer diameter of the first shaft section is smaller than that of the fourth shaft section, the outer diameter of the fourth shaft section is smaller than that of the second shaft section, and the outer diameter of the second shaft section is smaller than that of the third shaft section.
6. The main shaft of a forced supercharging air intake apparatus of an automobile engine according to claim 1, characterized in that: the first distance is more than or equal to one fourth of the total length of the main shaft and less than or equal to two fifths of the total length of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848622.7U CN212959489U (en) | 2020-08-28 | 2020-08-28 | Main shaft of forced supercharging air inlet device of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848622.7U CN212959489U (en) | 2020-08-28 | 2020-08-28 | Main shaft of forced supercharging air inlet device of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959489U true CN212959489U (en) | 2021-04-13 |
Family
ID=75361676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021848622.7U Active CN212959489U (en) | 2020-08-28 | 2020-08-28 | Main shaft of forced supercharging air inlet device of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959489U (en) |
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2020
- 2020-08-28 CN CN202021848622.7U patent/CN212959489U/en active Active
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