CN215566472U - Novel crankshaft with oil groove structure - Google Patents
Novel crankshaft with oil groove structure Download PDFInfo
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- CN215566472U CN215566472U CN202121731499.5U CN202121731499U CN215566472U CN 215566472 U CN215566472 U CN 215566472U CN 202121731499 U CN202121731499 U CN 202121731499U CN 215566472 U CN215566472 U CN 215566472U
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Abstract
The utility model discloses a crankshaft with a novel oil groove structure, which comprises a main shaft, wherein the top surface of the main shaft is connected with a balance part, the top surface of the balance part is connected with an eccentric shaft, the bottom of the main shaft is provided with an oil pumping structure, a first channel is formed inside the oil pumping structure, the surface of the oil pumping structure is provided with an air hole, a first oil hole is formed in the top of the first channel, the surface of the main shaft is provided with a vortex oil groove connected with the first oil hole, the top of the vortex oil groove is provided with an inclined second oil hole, the second oil hole is connected with a second channel, the second channel penetrates through the top surface of the eccentric shaft to form an oil outlet, the surface of the eccentric shaft is provided with a third oil hole, the third oil hole is communicated with the second channel, the outer surface of the eccentric shaft is provided with an oil outlet groove, and the outer surface of the eccentric shaft is also provided with a third annular oil groove; the utility model has the advantages that the joint of the oil groove and the oil hole on the matching surface of the crankshaft has no sharp angle and the shaft neck is fully lubricated.
Description
Technical Field
The utility model belongs to the technical field of compressors, and particularly relates to a crankshaft with a novel oil groove structure.
Background
The crankshaft is an important component of the compressor and mainly plays a role in connecting parts and transmitting power, and comprises a main shaft, an eccentric shaft, a balance block and an oil way, and the crankshaft bears torque transmitted by a motor rotor and converts the torque into reciprocating motion of a piston through the eccentric shaft and a connecting rod. In the process of transmitting power, the crankshaft directly bears the torque of the motor and the interaction force at the connecting rod, the main shaft of the crankshaft can rub with the shaft hole, and the eccentric shaft can rub with the large hole of the connecting rod, so that the crankshaft is required to have enough strength and rigidity, the surface of the journal needs to be wear-resistant, fully lubricated and well balanced.
China (CN202010940346.5) discloses a crankshaft, a compressor containing the crankshaft and refrigeration equipment, and belongs to the technical field of compressor refrigeration, the crankshaft comprises a main shaft, fan blades and an eccentric shaft which are connected in sequence, the main shaft is provided with a first oil hole and a second oil hole along the axis direction, the outer wall surface of the main shaft is provided with a spiral oil groove, the spiral oil groove is respectively connected with the first oil hole and the second oil hole, and the outer wall surface of the main shaft is provided with a first annular oil groove and a second annular oil groove; the first oil filling hole is arranged in the first third annular oil groove; the second oil filler hole is provided in the second third annular oil groove. According to the oil hole structure, the third annular oil groove is formed in the crankshaft and is directly communicated with the oil hole, debris can be cached in the third annular oil groove, the situation that the oil film is damaged due to the fact that the debris is gathered at the oil hole is avoided, and linear abrasion at the oil hole of the main shaft is reduced; meanwhile, a third annular oil groove is formed in the middle of the main shaft and the oil hole of the eccentric shaft and stores oil, and each part of the crankshaft can be quickly lubricated when the compressor is restarted.
The defects of the prior art are as follows: 1. the joint of an oil groove and an oil hole on a traditional crankshaft journal is provided with a sharp corner, so that a salient point or burr is easily generated, the salient point or burr can scratch a matching surface, abrasion is increased, and the compressor is seriously and directly blocked; 2. the existing crankshaft structure is easy to wear on the shaft neck; 3. the existing crankshaft structure can not effectively avoid the generation of salient points or sharp corners, has higher requirements on processing control, and can not identify the salient points or the sharp corners generated at the joint of the oil holes and the oil grooves in the process inspection, thereby bringing potential quality hazards to the product quality of the compressor.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a crankshaft with a novel oil groove structure, wherein the joint of an oil groove and an oil hole on the matching surface of the crankshaft does not have a sharp angle and the shaft neck is sufficiently lubricated.
In order to achieve the purpose, the utility model adopts the technical scheme that: a crankshaft with a novel oil groove structure comprises a main shaft, wherein a balance part is connected to the top surface of the main shaft, an eccentric shaft is connected to the top surface of the balance part, an oil pumping structure is arranged at the bottom of the main shaft, a first channel inclining upwards from the bottom surface is formed inside the oil pumping structure, an air hole communicated with the first channel is formed in the surface of the oil pumping structure, a first oil hole connected with the surface of the main shaft is formed in the top of the first channel, a vortex oil groove starting upwards from the first oil hole is formed in the surface of the main shaft, a second oil hole inclining upwards in the radial direction is formed in the top of the vortex oil groove, the second oil hole is connected with a second channel inclining upwards, the second channel penetrates through the balance part and the eccentric shaft respectively, the second channel penetrates through the top surface of the eccentric shaft to form an oil outlet, and a third oil hole is formed in the surface of the eccentric shaft, the third oil hole is communicated with the second channel, an oil outlet groove communicated with the top surface of the eccentric shaft from the third oil hole is formed in the outer surface of the eccentric shaft, the oil outlet groove is a vertical oil groove or an inclined oil groove, a circle of third annular oil groove is further formed in the outer surface of the eccentric shaft, and the third oil hole is located in the third annular oil groove.
In the above scheme, the crankshaft of the novel oil groove structure comprises a main shaft, wherein the top surface of the main shaft is connected with a balance part, the top surface of the balance part is connected with an eccentric shaft, and the eccentric shaft is arranged to realize the function of power transmission, the bottom of the main shaft is provided with an oil pumping structure, a first channel inclined upwards from the bottom surface is arranged in the oil pumping structure, engine oil positioned in the first channel at the bottom of a compressor generates centrifugal force to flow upwards through the rotation of the crankshaft, the surface of the oil pumping structure is provided with an air hole communicated with the first channel, the air hole is arranged to balance air pressure in the first channel, the communication part of the air hole and the first channel is arranged on one side of the first channel opposite to the inclination direction to prevent the engine oil of the pump from flowing out, the top of the first channel is provided with a first oil hole connected with the surface of the main shaft, the surface of the main shaft is provided with a vortex oil groove starting from the first oil hole to go upwards, the oil is guided to the surface of the main shaft for lubrication through a first oil hole and a vortex oil groove, a second oil hole which is inclined upwards in the radial direction is formed at the top of the vortex oil groove, the second oil hole is connected with a second channel which inclines upwards, the second channel respectively penetrates through the balance part and the eccentric shaft, the second channel penetrates through the top surface of the eccentric shaft to form an oil outlet, the oil is guided to the oil outlet of the top surface of the eccentric shaft through the second oil hole and the second channel, the engine oil is thrown out to return to the bottom of the compressor for circulating flow, a third oil hole is formed in the surface of the eccentric shaft, the third oil hole is communicated with the second channel at the inclined side of the second channel, a third oil hole is arranged to guide the engine oil in the second channel to the surface of the eccentric shaft for lubrication, and an oil outlet groove communicated with the top surface of the eccentric shaft from the third oil hole is formed in the outer surface of the eccentric shaft, the oil outlet groove is a vertical oil groove or an inclined oil groove and is arranged to enable engine oil to fully lubricate the eccentric shaft and the connecting rod connected with the eccentric shaft when the eccentric shaft rotates, a circle of third annular oil groove is further formed in the outer surface of the eccentric shaft and can store the engine oil in the circumferential direction, the lubricating effect of the crankshaft eccentric shaft can be improved, the third oil hole is located in the third annular oil groove and is arranged to prevent a sharp corner from being generated when the third oil hole is machined, a convex point or burr is easily generated at the sharp corner, and the convex point or the burr can scratch a matching surface (such as a crankshaft shaft hole and a connecting rod hole) in the rotating process of the crankshaft, so that the abrasion is increased, the crankshaft or the connecting rod is scratched, a compressor motion pair is severely blocked and cannot be started, and the quality problem that the refrigerator cannot be refrigerated is finally presented.
According to the utility model, the annular oil groove which is wider than the oil hole is arranged at the oil hole of the eccentric shaft of the crankshaft, the oil groove surface is lower than the outer circular surface of the eccentric shaft, and the radial oil hole is arranged in the oil groove, so that the joint of the oil hole of the eccentric shaft and the oil groove is positioned in the annular oil groove and is lower than the rotary motion contact surface. The main shaft vortex oil groove width is greater than the oilhole diameter, directly adopts the cutter to guarantee one shot forming, to the design of eccentric shaft oilhole and main shaft oilhole department, can improve the lubricated effect of bent axle eccentric shaft and improve the bent axle oilhole because of bump or closed angle that technology formed for the oilhole parcel can not produce bump or closed angle at the fitting surface inside the oil groove, thereby the production of fault machines such as effectual reduction fish tail, wearing and tearing.
Further, the gas pocket the first oilhole the second oilhole the vortex oil groove the third oilhole go out the oil groove third annular oil groove department is provided with chamfer or radius structure respectively, first oilhole the chamfer or radius structure of second oilhole department is located inside the vortex oil groove, the chamfer or radius structure of third oilhole department is located inside the third annular oil groove.
The gas pocket first oilhole the second oilhole the vortex oil groove the third oilhole go out the oil groove third annular oil groove department is provided with the production that chamfer or radius structure prevented closed angle, burr respectively, first oilhole the chamfer or the radius structure of second oilhole department is located inside the vortex oil groove, prevent to add man-hour production closed angle, the processing of being convenient for, the chamfer or the radius structure of third oilhole department is located inside the third annular oil groove, prevent to add man-hour production closed angle, the processing of being convenient for.
Further, first oilhole department is provided with first annular oil groove, chamfer or radius structure at first oilhole department is located inside the first annular oil groove, second oilhole department is provided with second annular oil groove, chamfer or radius structure at second oilhole department is located inside the second annular oil groove.
First annular oil groove, second annular oil groove can save machine oil on the circumferencial direction, can improve the lubricated effect of main shaft, chamfer or radius structure of first oil hole department is located inside first annular oil groove, prevent to add man-hour production closed angle, the processing of being convenient for, chamfer or radius structure of second oil hole department is located inside the second annular oil groove, prevent to add man-hour production closed angle, the processing of being convenient for.
Further, the depth of the first annular oil groove is 1/4-2/3 of the depth of the vortex oil groove, and the depth of the second annular oil groove is 1/4-2/3 of the depth of the vortex oil groove.
The depths of the first annular oil groove and the second annular oil groove are 1/4-2/3 of the depth of the vortex oil groove, the first annular oil groove and the second annular oil groove are arranged to store engine oil and carry out circumferential lubrication, and the main shaft lubricating effect is further improved on the basis of the vortex oil groove.
Further, the depth of the third annular oil groove is 1/4-2/3 of the depth of the oil outlet groove.
The depth of the third annular oil groove is 1/4-2/3 of the depth of the vortex oil groove, the third annular oil groove is arranged for storing engine oil and carrying out circumferential lubrication, and the lubricating effect of the eccentric shaft is further improved on the basis of the oil outlet groove.
Further, the air hole, the first oil hole and the third oil hole are all arranged in the radial direction.
The radial horizontally is arranged to facilitate processing and positioning, and the first oil hole and the third oil hole are radially arranged to enable engine oil to be thrown out easily under the action of centrifugal force.
Furthermore, a positioning groove is formed in the balance part.
The positioning groove is arranged to facilitate processing and positioning.
Furthermore, an oil storage structure is arranged in the oil outlet groove.
An oil storage structure is arranged in the oil outlet groove, so that engine oil is stored in the oil outlet groove, and the lubricating effect is improved.
Further, be provided with in the vortex oil groove oil storage structure.
The vortex oil groove is provided with an oil storage structure so that engine oil is stored in the vortex oil groove, and the lubricating effect is improved.
Further, the oil storage structure is a plurality of grooves or bulges which are uniformly distributed.
The oil storage structure is a plurality of grooves or bulges which are uniformly distributed, and engine oil can be stored through the grooves or the bulges, so that the lubricating effect is improved.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the lubricating effect of the crankshaft journal can be improved by arranging the annular oil groove to match with the oil outlet groove and the vortex oil groove structure;
(2) due to the optimized design of the oil groove and the oil hole structure, when the oil hole is connected with the oil groove, no convex point or sharp corner is generated on the matching surface, so that the problems of scratching, abrasion and the like are effectively reduced;
(3) the oil storage structure is arranged in the oil groove to ensure sufficient supply of axial engine oil and improve the lubricating effect at the shaft neck.
Drawings
FIG. 1 is a front view of a crankshaft of a novel sump structure of the present invention;
FIG. 2 is a left side view of a crankshaft of a novel oil sump structure of the present invention;
FIG. 3 is a schematic view of the cross-sectional structure A-A of FIG. 1;
FIG. 4 is a schematic view of the cross-sectional structure B-B in FIG. 2;
fig. 5 is a perspective view of the structure in embodiment 2 of the present invention;
FIG. 6 is a partial structural view in embodiment 3 of the present invention;
in the figure: 1. a main shaft; 2. a balancing section; 3. an eccentric shaft; 4. an oil pumping structure; 5. a first channel; 6. air holes; 7. a first oil hole; 8. a vortex oil groove; 9. a second oil hole; 10. a second channel; 11. an oil outlet hole; 12. a third oil hole; 13. an oil outlet groove; 14. a third annular oil groove; 15. a first annular oil groove; 16. a second annular oil groove; 17. positioning a groove; 18. an oil storage structure.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1-4, a crankshaft with a novel oil groove structure comprises a main shaft 1, a balance part 2 is connected to the top surface of the main shaft 1, an eccentric shaft 3 is connected to the top surface of the balance part 2, an oil pumping structure 4 is arranged at the bottom of the main shaft 1, a first channel 5 inclined upwards from the bottom surface is formed inside the oil pumping structure 4, an air hole 6 communicated with the first channel 5 is formed on the surface of the oil pumping structure 4, a first oil hole 7 connected to the surface of the main shaft 1 is formed at the top of the first channel 5, a vortex oil groove 8 which is upward from the first oil hole 7 is formed on the surface of the main shaft 1, a second oil hole 9 inclined upwards in the radial direction is formed at the top of the vortex oil groove 8, the second oil hole 9 is connected to a second channel 10 inclined upwards, and the second channel 10 penetrates through the balance part 2 and the eccentric shaft 3 respectively, the second channel 10 penetrates through the top surface of the eccentric shaft 3 to form an oil outlet 11, a third oil hole 12 is formed in the surface of the eccentric shaft 3, the third oil hole 12 is communicated with the second channel 10, an oil outlet groove 13 communicated with the top surface of the eccentric shaft 3 from the third oil hole 12 is formed in the outer surface of the eccentric shaft 3, the oil outlet groove 13 is a vertical oil groove or an inclined oil groove, a circle of third annular oil groove 14 is further formed in the outer surface of the eccentric shaft 3, and the third oil hole 12 is located inside the third annular oil groove 14.
In the above scheme, the crankshaft of the novel oil groove structure comprises a main shaft 1, a balance part 2 is connected to the top surface of the main shaft 1, an eccentric shaft 3 is connected to the top surface of the balance part 2, the power transmission function is realized through the arrangement, an oil pumping structure 4 is arranged at the bottom of the main shaft 1, a first channel 5 inclined upwards from the bottom surface is formed in the oil pumping structure 4, engine oil positioned in the first channel 5 at the bottom of a compressor generates centrifugal force through rotation of the crankshaft to flow upwards, an air hole 6 communicated with the first channel 5 is formed in the surface of the oil pumping structure 4, the air hole 6 is arranged to balance air pressure in the first channel 5, the communication part of the air hole 6 and the first channel 5 is positioned on the side, opposite to the inclination direction, of the first channel 5, so as to prevent the engine oil of the pump from flowing out, a first oil hole 7 connected to the surface of the main shaft 1 is formed in the top of the first channel 5, a scroll oil groove 8 is formed on the surface of the main shaft 1 from the first oil hole 7 to the top, the oil is guided to the surface of the main shaft 1 through the first oil hole 7 and the scroll oil groove 8 for lubrication, a second oil hole 9 inclined upwards in the radial direction is formed on the top of the scroll oil groove 8, the second oil hole 9 is connected with a second channel 10 inclined upwards, the second channel 10 penetrates through the balance part 2 and the eccentric shaft 3 respectively, the second channel 10 penetrates through the top surface of the eccentric shaft 3 to form an oil outlet hole 11, the oil is guided to an oil outlet hole 11 on the top surface of the eccentric shaft 3 through the second oil hole 9 and the second channel 10, the oil is thrown out to return to the bottom of the compressor for circulation flow, a third oil hole 12 is formed on the surface of the eccentric shaft 3, the third oil hole 12 is communicated with the second channel 10 on the inclined side of the second channel 10, and the third oil hole 12 is arranged to guide the oil in the second channel 10 to the surface of the eccentric shaft 3 for lubrication, the outer surface of the eccentric shaft 3 is provided with an oil outlet groove 13 communicated with the top surface of the eccentric shaft 3 from the third oil hole 12, the oil outlet groove 13 is a vertical oil groove or an inclined oil groove, the oil outlet groove 13 is arranged to enable engine oil to fully lubricate the eccentric shaft 3 and a connecting rod connected with the eccentric shaft 3 when the eccentric shaft 3 rotates, the outer surface of the eccentric shaft 3 is also provided with a circle of third annular oil groove 14, the third annular oil groove 14 can store the engine oil in the circumferential direction, the lubricating effect of the crankshaft eccentric shaft 3 can be improved, the third oil hole 12 is positioned in the third annular oil groove 14, so that a sharp angle is prevented from being generated when the third oil hole 12 is processed, a salient point or burr is easily generated at the sharp angle, and because the salient point is a matched sealing surface with the shaft hole, the salient point or the burr can scratch a matching surface (such as the shaft hole of the crankshaft and the connecting rod hole) and increase the abrasion in the rotating process of the crankshaft, the crankshaft or the connecting rod is scratched, so that the moving pair of the compressor is clamped and cannot be started seriously, and the quality problem that the refrigerator does not refrigerate is finally presented.
According to the utility model, the annular oil groove which is wider than the oil hole is arranged at the oil hole of the crankshaft eccentric shaft 3, the surface of the oil groove is lower than the outer circular surface of the eccentric shaft 3, and the radial oil hole is arranged in the oil groove, so that the joint of the oil hole of the eccentric shaft 3 and the oil groove is positioned in the annular oil groove and is lower than the rotary motion contact surface. The width of the main shaft 1 vortex oil groove 8 is larger than the diameter of the oil hole, a cutter is directly adopted to guarantee one-step forming, the lubricating effect of the crankshaft eccentric shaft 3 can be improved and the salient point or the closed angle of the crankshaft oil hole formed by the process can be improved aiming at the design of the eccentric shaft 3 oil hole and the main shaft 1 oil hole, so that the oil hole is wrapped in the oil groove, the salient point or the closed angle cannot be generated on the matching surface, and the generation of fault machines such as the scratch and the abrasion can be effectively reduced.
Further, the air hole 6, the first oil hole 7, the second oil hole 9, the vortex oil groove 8, the third oil hole 12, the oil outlet groove 13, the third annular oil groove 14 is provided with a chamfer or rounding structure respectively, the first oil hole 7, the chamfer or rounding structure of the second oil hole 9 is located inside the vortex oil groove 8, and the chamfer or rounding structure of the third oil hole 12 is located inside the third annular oil groove 14.
The gas pocket 6 the first oilhole 7 the second oilhole 9 vortex oil groove 8 the third oilhole 12 go out oil groove 13 third annular oil groove 14 punishment do not is provided with the production that chamfer or radius structure prevented closed angle, burr, first oilhole 7 the chamfer or radius structure of second oilhole 9 department is located vortex oil groove 8 is inside, prevents to add man-hour production closed angle, the processing of being convenient for, the chamfer or radius structure of third oilhole 12 department is located inside third annular oil groove 14, prevents to add man-hour production closed angle, the processing of being convenient for.
Further, the depth of the third annular oil groove 14 is 1/4-2/3 of the depth of the oil outlet groove 13.
The depth of the third annular oil groove 14 is 1/4-2/3 of the depth of the vortex oil groove 8, the third annular oil groove 14 is arranged for storing engine oil and carrying out circumferential lubrication, and the lubricating effect of the eccentric shaft 3 is further improved on the basis of the oil outlet groove 13.
Further, the air hole 6, the first oil hole 7 and the third oil hole 12 are all arranged in the radial direction.
The radial arrangement is convenient for processing and positioning, and the first oil hole 7 and the third oil hole 12 are radially arranged, so that the engine oil can be thrown out more easily under the action of centrifugal force.
Furthermore, a positioning groove 17 is formed on the balancing part 2.
The positioning groove 17 is arranged to facilitate processing and positioning.
Example 2
As shown in fig. 5, the crankshaft with a novel oil groove structure according to the present embodiment is further optimized based on embodiment 1:
further, a first annular oil groove 15 is formed at the first oil hole 7, a chamfer or rounding structure at the first oil hole 7 is located inside the first annular oil groove 15, a second annular oil groove 16 is formed at the second oil hole 9, and a chamfer or rounding structure at the second oil hole 9 is located inside the second annular oil groove 16.
First annular oil groove 15, second annular oil groove 16 can be at circumferencial direction storage machine oil, can improve main shaft 1's lubricated effect, the chamfer or the radius structure of first oilhole 7 department is located inside first annular oil groove 15, prevent to produce the closed angle, be convenient for process man-hour, the chamfer or the radius structure of second oilhole 9 department is located inside second annular oil groove 16, prevent to produce the closed angle, be convenient for process man-hour.
Further, the depth of the first annular oil groove 15 is 1/4-2/3 of the depth of the scroll oil groove 8, and the depth of the second annular oil groove 16 is 1/4-2/3 of the depth of the scroll oil groove 8.
The depths of the first annular oil groove 15 and the second annular oil groove 16 are 1/4-2/3 of the depth of the vortex oil groove 8, the first annular oil groove 15 and the second annular oil groove 16 are arranged to store engine oil and carry out circumferential lubrication, and the lubricating effect of the main shaft 1 is further improved on the basis of the vortex oil groove 8.
Example 3
As shown in fig. 6, the crankshaft with a novel oil groove structure according to the present embodiment is further optimized based on embodiment 1:
further, an oil storage structure 18 is arranged in the oil outlet groove 13.
An oil storage structure 18 is arranged in the oil outlet groove 13, so that engine oil is stored in the oil storage structure, and the lubricating effect is improved.
Further, the oil storage structure 18 is arranged in the vortex oil groove 8.
The scroll oil groove 8 is provided with an oil storage structure 18 for storing oil therein, improving the lubrication effect.
Further, the oil storage structure 18 is a plurality of grooves or protrusions which are uniformly distributed, and the grooves or protrusions can be transversely or longitudinally distributed and also can be arranged in the annular oil groove.
The oil storage structure 18 is a plurality of grooves or bulges which are uniformly distributed, and engine oil can be stored through the grooves or bulges, so that the lubricating effect is improved.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A crankshaft with a novel oil groove structure comprises a main shaft, wherein a balance part is connected to the top surface of the main shaft, an eccentric shaft is connected to the top surface of the balance part, and the crankshaft is characterized in that an oil pumping structure is arranged at the bottom of the main shaft, a first channel inclining upwards from the bottom surface is formed inside the oil pumping structure, an air hole communicated with the first channel is formed in the surface of the oil pumping structure, a first oil hole connected with the surface of the main shaft is formed in the top of the first channel, a vortex oil groove starting upwards from the first oil hole is formed in the surface of the main shaft, a second oil hole inclining upwards in the radial direction is formed in the top of the vortex oil groove, the second oil hole is connected with a second channel inclining upwards, the second channel penetrates through the balance part and the eccentric shaft respectively, and the second channel penetrates through the top surface of the eccentric shaft to form an oil outlet, the eccentric shaft is provided with a first oil hole on the surface, the first oil hole is communicated with the first channel, the outer surface of the eccentric shaft is provided with an oil outlet groove communicated with the top surface of the eccentric shaft from the first oil hole, the oil outlet groove is a vertical oil groove or an inclined oil groove, the outer surface of the eccentric shaft is also provided with a circle of first annular oil groove, and the first oil hole is positioned inside the first annular oil groove.
2. The crankshaft with the novel oil groove structure as claimed in claim 1, wherein the gas hole, the first oil hole, the second oil hole, the vortex oil groove, the third oil hole, the oil outlet groove and the third annular oil groove are respectively provided with a chamfer or rounded structure, the chamfer or rounded structure at the first oil hole and the second oil hole is located inside the vortex oil groove, and the chamfer or rounded structure at the third oil hole is located inside the third annular oil groove.
3. A crankshaft with a novel oil groove structure as claimed in claim 2, wherein a first annular oil groove is arranged at the first oil hole, the chamfer or rounding structure at the first oil hole is positioned in the first annular oil groove, a second annular oil groove is arranged at the second oil hole, and the chamfer or rounding structure at the second oil hole is positioned in the second annular oil groove.
4. A crankshaft with a novel oil groove structure as claimed in claim 3, wherein the depth of the first annular oil groove is 1/4-2/3 of the depth of the vortex oil groove, and the depth of the second annular oil groove is 1/4-2/3 of the depth of the vortex oil groove.
5. A crankshaft with a novel oil groove structure as claimed in claim 1, wherein the depth of the third annular oil groove is 1/4-2/3 of the depth of the oil outlet groove.
6. A crankshaft with a novel oil groove structure as claimed in claim 1, wherein the air hole, the first oil hole and the third oil hole are all arranged in a radial direction.
7. A crankshaft with a novel oil groove structure as claimed in claim 1, wherein the balance part is provided with a positioning groove.
8. A crankshaft with a novel oil groove structure as claimed in claim 1, wherein an oil storage structure is arranged in the oil outlet groove.
9. A crankshaft with a novel oil groove structure as claimed in claim 8, wherein the oil storage structure is arranged in the vortex oil groove.
10. A crankshaft with a novel oil groove structure as claimed in claim 8 or 9, wherein the oil storage structure is a plurality of grooves or protrusions distributed uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121731499.5U CN215566472U (en) | 2021-07-28 | 2021-07-28 | Novel crankshaft with oil groove structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121731499.5U CN215566472U (en) | 2021-07-28 | 2021-07-28 | Novel crankshaft with oil groove structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215566472U true CN215566472U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121731499.5U Active CN215566472U (en) | 2021-07-28 | 2021-07-28 | Novel crankshaft with oil groove structure |
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| Country | Link |
|---|---|
| CN (1) | CN215566472U (en) |
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2021
- 2021-07-28 CN CN202121731499.5U patent/CN215566472U/en active Active
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