CN211448940U - Air compressor crankshaft - Google Patents
Air compressor crankshaft Download PDFInfo
- Publication number
- CN211448940U CN211448940U CN201922095530.XU CN201922095530U CN211448940U CN 211448940 U CN211448940 U CN 211448940U CN 201922095530 U CN201922095530 U CN 201922095530U CN 211448940 U CN211448940 U CN 211448940U
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- connecting rod
- main shaft
- spindle
- air compressor
- rod shafts
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to an air compressor machine bent axle, it includes main shaft and two connecting rod axles, main shaft and connecting rod axle all are cylindrical, the diameter of connecting rod axle is less than the diameter of main shaft, two connecting rod axles set up respectively on the left surface and the right flank of main shaft, two connecting rod axles set up with axial eccentric with the main shaft, two connecting rod axles set up about the central point central symmetry of main shaft, be equipped with the main shaft hole at the middle part of main shaft, the axial setting of main shaft edge main shaft is followed in the main shaft hole, the main shaft hole link up main shaft and two connecting rod axles from a left side to the right side, all be equipped with the lightening hole on two connecting rod axles, the lightening hole link up the connecting rod axle at main shaft and place, the lightening hole sets. The utility model discloses an air compressor machine bent axle rotating balance nature is better, can the noise abatement, can reduce the loss to the bent axle again, increase of service life.
Description
Technical Field
The utility model relates to an air compressor machine accessory field, concretely relates to air compressor machine bent axle.
Background
The piston air compressor machine is an air compressor machine which changes the internal volume of the air compressor machine through a piston which reciprocates in an air cylinder, a motor drives a crankshaft to rotate after being started, the piston reciprocates through the transmission of a connecting rod, the working volume can change periodically, the crankshaft rotates for a circle, the piston reciprocates once, and the processes of air inlet, compression and exhaust are successively realized in the air cylinder, namely, one working cycle is completed. In this process, the crankshaft is an important part for realizing power transmission between the motor and the piston, because the connection between the connecting rod and the crankshaft is an eccentric connection, the crankshaft is influenced by self gravity when rotating, and the centrifugal force is the largest under the action of inertia when rotating to the lowest position, so that the radial force applied to the crankshaft is increased, noise is generated, the service life of the crankshaft is shortened, and the improvement is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: to the problem that the air compressor machine bent axle during operation noise among the prior art is big, life is short, provides an air compressor machine bent axle that can solve aforementioned problem.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the main shaft and the connecting rod shafts are cylindrical, the diameter of each connecting rod shaft is smaller than that of the main shaft, the two connecting rod shafts are arranged on the left side face and the right side face of the main shaft respectively, the two connecting rod shafts and the main shaft are coaxially and eccentrically arranged, the two connecting rod shafts are symmetrically arranged relative to the center point of the main shaft, a main shaft hole is formed in the middle of the main shaft and is arranged along the axial direction of the main shaft, the main shaft hole penetrates through the main shaft and the two connecting rod shafts from left to right, lightening holes are formed in the two connecting rod shafts, penetrate through the main shaft and the connecting rod shaft where the lightening holes are located, and the lightening holes are formed in one side, close to the edge of the main shaft, of the connecting.
The further proposal is that the connecting part of the connecting rod shaft and the main shaft is provided with a limiting step surface.
The further proposal is that the inner wall of the spindle hole is provided with a positioning groove.
In a further scheme, the main shaft and the two connecting rod shafts are cylindrical parts with the diameter larger than the axial thickness.
The utility model discloses has positive effect: 1) the two connecting rod shafts are arranged symmetrically about the central point of the main shaft, so that the air compressor crankshaft is symmetrical and balanced in working, more stable in rotation and noise elimination; 2) the two connecting rod shafts are provided with the lightening holes, so that the symmetrical balance of the crankshaft of the air compressor is kept, the weight of the two connecting rod shafts and the main shaft is reduced, the inertia force of the connecting rod shafts positioned below the connecting rod shafts is greatly reduced when the crankshaft rotates, the noise generated when the crankshaft rotates is eliminated, and the service life of the crankshaft is prolonged.
Drawings
Fig. 1 is a schematic structural view of the air compressor crankshaft of the present invention;
FIG. 2 is a sectional view taken along line A-A in FIG. 1;
fig. 3 is a schematic side view of the air compressor crankshaft of the present invention;
the main shaft comprises a main shaft 1, a main shaft hole 11, a positioning groove 12, a connecting rod shaft 2, a lightening hole 21 and a limiting step surface 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
As shown in fig. 1 to 3, the air compressor crankshaft of the present embodiment includes a main shaft 1 and two link shafts 2. The main shaft 1 and the connecting rod shaft 2 are both cylindrical members made of high-strength deformation-resistant metal or alloy materials, the diameter of the connecting rod shaft 2 is smaller than that of the main shaft 1, the two connecting rod shafts 2 are respectively arranged on the left side surface and the right side surface of the main shaft 1, the two connecting rod shafts 2 are coaxially and eccentrically arranged with the main shaft 1, as shown in fig. 1 and 2, the axial directions of the main shaft 1 and the connecting rod shafts 2 are in the left-right direction, the two connecting rod shafts 2 are arranged in central symmetry with respect to the central point of the main shaft 1, a main shaft hole 11 is arranged in the middle of the main shaft 1, the main shaft hole 11 is arranged along the axial direction of the main shaft 1, the central point of the main shaft 1 is located at the central point of the central line of the main shaft hole 11, the main shaft hole 11 of the main shaft 1 penetrates through the main shaft 1 and the two connecting rod shafts 2 from left to right, lightening holes 21 are arranged on the two connecting rod shafts 2, for example, the lightening hole 21 is provided on the side of the link shaft 2 near the edge of the main shaft 1.
Example 2
On the basis of embodiment 1, in order to facilitate the assembling and positioning of the connecting rod shaft 2, a limit step surface 22 is arranged at the connecting part of the connecting rod shaft 2 and the main shaft 1.
Example 3
On the basis of embodiment 1, in order to facilitate the assembly and positioning of the spindle 1, a positioning groove 12 is arranged on the inner wall of the hole of the spindle 1.
Example 4
On the basis of embodiment 1, in order to reduce the rotational inertia of the crankshaft, the main shaft 1 and the two connecting rod shafts 2 are cylindrical members with a diameter larger than the axial thickness.
The utility model discloses an air compressor machine bent axle, when using, assemble the axis of rotation in the main shaft hole 11 of main shaft 1, axis of rotation and motor or drive mechanism's output fixed connection, under the drive of axis of rotation, main shaft 1 rotates, herein simultaneously, the connecting rod axle 2 that is located the 1 left and right sides of main shaft also rotates thereupon, when connecting rod axle 2 rotates, because connecting rod axle 2 eccentric settings, so when connecting rod axle 2 rotates, the up-and-down motion can take place for the connecting rod of being connected with it, the up-and-down motion of the piston that the upper and lower activity of connecting rod drove the air compressor machine cylinder thereupon, realize breathing in of air compressor machine, compression and carminat. The utility model discloses an air compressor crankshaft sets up connecting rod axle 2 at the both sides face of main shaft 1, and two connecting rod axles 2 are central symmetry setting about the central point of main shaft 1, make air compressor crankshaft during operation, symmetrical balance, rotate more steadily, noise abatement; the lightening holes 21 are arranged on the two connecting rod shafts 2, so that the symmetrical balance of the crankshaft of the air compressor is kept, the weight of the two connecting rod shafts 2 and the main shaft 1 is reduced, the inertia force generated when the connecting rod shafts 2 are positioned below the crankshaft is greatly reduced when the crankshaft rotates, the noise generated when the crankshaft rotates is eliminated, and the service life of the crankshaft is prolonged.
The utility model discloses in about the description of left right direction, only to the description under the position state in the description attached drawing 1, if rotate a direction, perhaps observation angle's position transform can lead to the change of corresponding left right position relation, therefore, to the description of left right direction, do not be used for the restriction to the protection scope of the utility model.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an air compressor machine bent axle which characterized in that: the spindle and the connecting rod shafts are cylindrical, the diameters of the connecting rod shafts are smaller than those of the spindle, the two connecting rod shafts are respectively arranged on the left side surface and the right side surface of the spindle, the two connecting rod shafts and the spindle are coaxially and eccentrically arranged, the two connecting rod shafts are arranged in a central symmetry mode about the central point of the spindle, a spindle hole is formed in the middle of the spindle, the spindle hole is arranged in the axial direction of the spindle, the spindle hole penetrates through the spindle and the two connecting rod shafts from left to right, lightening holes are formed in the two connecting rod shafts, the lightening holes penetrate through the spindle and the connecting rod shaft where the spindle is located, and the lightening holes are formed in one side, close to the edge of the spindle, of the.
2. The air compressor crankshaft of claim 1, wherein: and a limiting step surface is arranged at the connecting part of the connecting rod shaft and the main shaft.
3. The air compressor crankshaft of claim 1, wherein: the inner wall of the spindle hole is provided with a positioning groove.
4. The air compressor crankshaft of claim 1, wherein: the main shaft and the two connecting rod shafts are cylindrical parts with the diameter larger than the axial thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922095530.XU CN211448940U (en) | 2019-11-28 | 2019-11-28 | Air compressor crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922095530.XU CN211448940U (en) | 2019-11-28 | 2019-11-28 | Air compressor crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211448940U true CN211448940U (en) | 2020-09-08 |
Family
ID=72298770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922095530.XU Active CN211448940U (en) | 2019-11-28 | 2019-11-28 | Air compressor crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211448940U (en) |
-
2019
- 2019-11-28 CN CN201922095530.XU patent/CN211448940U/en active Active
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