CN111946597A - Crankshaft lubricating structure - Google Patents
Crankshaft lubricating structure Download PDFInfo
- Publication number
- CN111946597A CN111946597A CN202010940346.5A CN202010940346A CN111946597A CN 111946597 A CN111946597 A CN 111946597A CN 202010940346 A CN202010940346 A CN 202010940346A CN 111946597 A CN111946597 A CN 111946597A
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- hole
- shaft
- channel
- eccentric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 11
- 238000005461 lubrication Methods 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 abstract description 40
- 239000010687 lubricating oil Substances 0.000 abstract description 13
- 230000009194 climbing Effects 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
- F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to lubrication
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Compressor (AREA)
Abstract
A crankshaft lubrication structure belongs to the technical field of compressor equipment; when the ring oil groove is located the outside of first through-hole and in when on the outer wall of bent axle major axis, or the ring oil groove be located the outside of second through-hole and in when on the outer wall of bent axle major axis, or the ring oil groove all be located the outside of first through-hole and in on the outer wall of bent axle major axis with the outside of second through-hole and in when on the outer wall of bent axle major axis, the ring oil groove all plays and improves bent axle climbing oil storage ability, makes lubricating oil can the efficient pass through the lubricated bent axle main part of helicla flute, improves the lubricating property between bent axle main part and the frame, reduces wearing and tearing locking between bent axle main part and the frame.
Description
Technical Field
The invention belongs to the technical field of compressor equipment, and particularly relates to a crankshaft lubricating structure.
Background
With the rapid development of industrial technology, compressors are becoming essential key devices in various sectors of the national economic support industry. The crankshaft is used as the main moving part of the reciprocating piston compressor, and the structural parameters of the crankshaft have decisive and important influence on the aspects of the overall dimension, the quality, the working safety, the service life and the like of the compressor.
The existing compressor crankshaft is provided with a spiral groove structure outside a long shaft of the crankshaft, a motor rotor drives the crankshaft to rotate, and due to friction force, relative motion is generated between refrigeration oil and a spiral groove of the crankshaft, so that the refrigeration oil is pumped into the path of the spiral groove to lubricate.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a crankshaft lubricating structure.
The technical problem of the invention is mainly solved by the following technical scheme: a crankshaft lubricating structure comprises a crankshaft main body, wherein the crankshaft main body comprises a crankshaft long shaft, an eccentric short shaft and an eccentric shaft, a semicircular eccentric wheel is arranged on one side of the eccentric shaft, the eccentric short shaft is arranged at the upper end of the eccentric shaft on the side far away from the semicircular eccentric wheel, the crankshaft long shaft is arranged at the lower end of the center of the eccentric shaft, a first channel is arranged on the inner side of the lower end part of the crankshaft long shaft, a second channel is arranged on the inner side of the middle end part of the crankshaft long shaft, a third channel is arranged on the inner side of the upper end part of the crankshaft long shaft, the first channel is communicated with the second channel, the second channel is identical to the third channel, the lower side of the first channel is communicated with the outside of the crankshaft long shaft, a spiral groove is arranged on the outer wall of the crankshaft long shaft, a first through hole is arranged at the lower end part, the upper end opening of the third channel is arranged on the upper surface of the eccentric shaft, the upper end portion of the crankshaft long shaft is located, a second through hole is formed in the upper end of the spiral groove, a concave hole is formed in the inner side of the eccentric short shaft, a fourth channel is arranged between the bottom of the concave hole and the second through hole, an annular short groove is formed in the outer wall of the eccentric short shaft, a third through hole is formed between one end of the annular short groove and the concave hole, a circle of radial annular oil groove is formed in the outer side of the first through hole and in the outer wall of the crankshaft long shaft, a horn-shaped opening is formed in the notch of the annular oil groove, the width of the annular oil groove is 0.5-0.8mm, the width of the maximum opening of the horn-shaped opening is 1.2-1.8mm, and the depth from the upper side face of the horn-shaped opening.
Preferably, the oil ring groove is located on the outer wall of the long shaft of the crankshaft and outside the second through hole.
Preferably, the oil ring grooves are located on the outer side of the first through hole and on the outer wall of the crankshaft long shaft, and the oil ring grooves are located on the outer side of the second through hole and on the outer wall of the crankshaft long shaft.
Preferably, the annular oil groove width is 0.6mm, the maximum opening width of the horn-shaped opening is 1.3mm, and the depth from the upper side surface of the horn-shaped opening to the annular oil groove bottom is 0.7 mm.
The invention has the following beneficial effects: the radial oil grooves are added, so that the climbing oil storage capacity of the crankshaft is improved, and lubricating oil can efficiently lubricate the crankshaft main body through the spiral grooves; the lubricating performance between the crankshaft main body and the rack is improved, and abrasion and locking between the crankshaft main body and the rack are reduced.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the oil ring groove disposed outside the second through hole according to the present invention;
FIG. 3 is a schematic view of the oil ring groove disposed outside the first through hole according to the present invention;
FIG. 4 is a schematic diagram of the configuration of the oil ring grooves disposed outside the first and second through holes of the present invention;
FIG. 5 is a schematic perspective view of the present invention;
FIG. 6 is a schematic view of a configuration of the ring oil groove cross section of the present invention.
In the figure: 1. a crankshaft main body; 2. a crankshaft long shaft; 3. an eccentric minor axis; 4. an eccentric shaft; 5. a semicircular eccentric wheel; 6. a first channel; 7. a second channel; 8. a third channel; 9. a helical groove; 10. a first through hole; 11. a second through hole; 12. concave holes; 13. a fourth channel; 14. an annular short groove; 15. a third through hole; 16. an annular oil groove; 17. a horn-shaped opening; 18. the annular oil groove is wide; 19. the maximum opening width of the horn-shaped opening; 20. the depth from the upper side surface of the horn-shaped opening to the bottom of the annular oil groove.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): a crankshaft lubricating structure is shown in figures 1-6 and comprises a crankshaft main body, wherein the crankshaft main body comprises a crankshaft long shaft, an eccentric short shaft and an eccentric shaft, a semicircular eccentric wheel is arranged on one side of the eccentric shaft, the eccentric short shaft is arranged at the upper end of the eccentric shaft on the side far away from the semicircular eccentric wheel, the crankshaft long shaft is arranged at the lower end of the center of the eccentric shaft, a first channel is arranged on the inner side of the lower end part of the crankshaft long shaft, a second channel is arranged on the inner side of the middle end part of the crankshaft long shaft, a third channel is arranged on the inner side of the upper end part of the crankshaft long shaft, the first channel is communicated with the second channel, the second channel is identical to the third channel, the lower side of the first channel is communicated with the outside of the crankshaft long shaft, a spiral groove is arranged on the outer wall of the crankshaft, the lower end part of the spiral groove is communicated with the first channel through a first through hole, the upper port of the third channel is arranged on the upper surface of the eccentric shaft, a second through hole is arranged at the upper end part of the long shaft of the crankshaft and at the upper end of the spiral groove, a concave hole is arranged on the inner side of the eccentric short shaft, a fourth channel is arranged between the bottom of the concave hole and the second through hole, an annular short groove is arranged on the outer wall of the eccentric short shaft, a third through hole is arranged between one end of the annular short groove and the concave hole, a circle of radial annular oil groove is arranged on the outer wall of the crankshaft long shaft and positioned outside the first through hole, a horn-shaped opening is arranged at the notch of the annular oil groove, the width of the annular oil groove is 0.5-0.8mm, the width of the maximum opening of the horn-shaped opening is 1.2-1.8mm, and the depth from the upper side surface of the horn-shaped opening to the bottom of the annular oil groove is 0.6-1.2 mm.
The oil ring groove is positioned on the outer side of the second through hole and on the outer wall of the crankshaft long shaft; the oil storage capacity of the upper end part of the long shaft of the crankshaft is improved.
The oil ring grooves are positioned on the outer side of the first through hole and on the outer wall of the crankshaft long shaft, and the oil ring grooves are positioned on the outer side of the second through hole and on the outer wall of the crankshaft long shaft; the oil storage capacity of the upper end part and the lower end part of the long shaft of the crankshaft is improved.
The width of the annular oil groove is 0.6mm, the width of the maximum opening of the horn-shaped opening is 1.3mm, and the depth from the upper side surface of the horn-shaped opening to the bottom of the annular oil groove is 0.7 mm; the improvement stock solution ability that makes the biggest effect of lubricating oil guarantees lubricated effect, and the collection that horn-shaped opening made lubricating oil can be better is dispersed.
The implementation mode is as follows:
when the crankshaft main body rotates, the lubricating oil moves upwards through the first channel due to the friction force between the lubricating oil and the crankshaft main body, the lubricating oil flows to the spiral groove through the first through hole, when the annular oil grooves are positioned on the outer side of the first through hole and on the outer wall of the crankshaft long shaft, or the annular oil grooves are positioned on the outer side of the second through hole and on the outer wall of the crankshaft long shaft, or the annular oil grooves are positioned on the outer side of the first through hole and on the outer wall of the crankshaft long shaft and on the outer wall of the second through hole and on the outer wall of the crankshaft long shaft, the annular oil grooves have the function of improving the climbing oil storage capacity of the crankshaft, so that the lubricating oil can efficiently lubricate the crankshaft main body through the spiral groove, the lubricating performance between the crankshaft main body and the rack is improved, the abrasion locking between the crankshaft main body and the rack is reduced, the relative motion is generated between the, lubricating oil moves upwards to the upper surface of the eccentric shaft for lubrication, the lubricating oil moving upwards through the spiral groove enters the second through hole, the lubricating oil enters the fourth channel after passing through the second through hole, and the lubricating oil enters the annular short groove after passing through the third through hole, so that the lubricating oil reaches the outer side of the eccentric short shaft, and the lubricating effect of the upper end part of the crankshaft main body is achieved.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Claims (4)
1. A crankshaft lubricating structure comprises a crankshaft main body and is characterized in that the crankshaft main body comprises a crankshaft long shaft, an eccentric short shaft and an eccentric shaft, a semicircular eccentric wheel is arranged on one side of the eccentric shaft, the eccentric short shaft is arranged at the upper end of the eccentric shaft on the side far away from the semicircular eccentric wheel, the crankshaft long shaft is arranged at the lower end of the center of the eccentric shaft, a first channel is arranged on the inner side of the lower end part of the crankshaft long shaft, a second channel is arranged on the inner side of the middle end part of the crankshaft long shaft, a third channel is arranged on the inner side of the upper end part of the crankshaft long shaft, the first channel is communicated with the second channel, the second channel is identical to the third channel, the lower side of the first channel is communicated with the outside of the crankshaft long shaft, a spiral groove is arranged on the outer wall of the crankshaft long shaft, a first through hole is arranged at the lower end part, the upper end opening of the third channel is arranged on the upper surface of the eccentric shaft, the upper end portion of the crankshaft long shaft is located, a second through hole is formed in the upper end of the spiral groove, a concave hole is formed in the inner side of the eccentric short shaft, a fourth channel is arranged between the bottom of the concave hole and the second through hole, an annular short groove is formed in the outer wall of the eccentric short shaft, a third through hole is formed between one end of the annular short groove and the concave hole, a circle of radial annular oil groove is formed in the outer side of the first through hole and in the outer wall of the crankshaft long shaft, a horn-shaped opening is formed in the notch of the annular oil groove, the width of the annular oil groove is 0.5-0.8mm, the width of the maximum opening of the horn-shaped opening is 1.2-1.8mm, and the depth from the upper side face of the horn-shaped opening.
2. A crankshaft lubrication structure according to claim 1, wherein said oil ring groove is located outside said second through hole on an outer wall of a long axis of said crankshaft.
3. A crankshaft lubrication structure according to claim 1, wherein said oil ring groove is located outside said first through hole and on the outer wall of said crankshaft long shaft and outside said second through hole and on the outer wall of said crankshaft long shaft.
4. A crankshaft lubrication structure according to claim 1, characterized in that said ring oil groove width is 0.6mm, the maximum opening width of said trumpet-shaped opening is 1.3mm, and the depth from the upper side of said trumpet-shaped opening to the ring oil groove bottom is 0.7 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940346.5A CN111946597A (en) | 2020-09-09 | 2020-09-09 | Crankshaft lubricating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940346.5A CN111946597A (en) | 2020-09-09 | 2020-09-09 | Crankshaft lubricating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111946597A true CN111946597A (en) | 2020-11-17 |
Family
ID=73356655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010940346.5A Pending CN111946597A (en) | 2020-09-09 | 2020-09-09 | Crankshaft lubricating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111946597A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382931A (en) * | 2013-05-09 | 2013-11-06 | 广东技术师范学院 | Refrigeration compressor with oil supply system |
| CN203488334U (en) * | 2013-09-23 | 2014-03-19 | 杭州钱江压缩机有限公司 | Novel compressor crankshaft |
| CN203939654U (en) * | 2014-06-13 | 2014-11-12 | 杭州钱江压缩机有限公司 | A kind of commercial compressor lengthens bent axle |
| CN205349649U (en) * | 2015-11-23 | 2016-06-29 | 江苏白雪电器股份有限公司 | Compressor crank |
| CN106438283A (en) * | 2016-10-26 | 2017-02-22 | 黄石东贝电器股份有限公司 | Crankshaft and compressor |
| CN206309552U (en) * | 2016-10-28 | 2017-07-07 | 黄石东贝电器股份有限公司 | A kind of bent axle and compressor |
| CN107476955A (en) * | 2017-08-31 | 2017-12-15 | 杭州钱江压缩机集团有限公司 | A kind of compressor crank shaft lubrication system |
| CN209179974U (en) * | 2018-10-16 | 2019-07-30 | 杭州钱江制冷压缩机集团有限公司 | Novel compressor crankshaft |
| CN209621546U (en) * | 2019-01-18 | 2019-11-12 | 大同压缩机（中山）有限公司 | A kind of compressor crankshaft |
| CN211343689U (en) * | 2019-12-05 | 2020-08-25 | 黄石东贝电器股份有限公司 | Compressor crankshaft capable of improving reliability |
| CN212563577U (en) * | 2020-09-09 | 2021-02-19 | 浙江麦迪制冷科技股份有限公司 | Crankshaft lubricating structure |
-
2020
- 2020-09-09 CN CN202010940346.5A patent/CN111946597A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382931A (en) * | 2013-05-09 | 2013-11-06 | 广东技术师范学院 | Refrigeration compressor with oil supply system |
| CN203488334U (en) * | 2013-09-23 | 2014-03-19 | 杭州钱江压缩机有限公司 | Novel compressor crankshaft |
| CN203939654U (en) * | 2014-06-13 | 2014-11-12 | 杭州钱江压缩机有限公司 | A kind of commercial compressor lengthens bent axle |
| CN205349649U (en) * | 2015-11-23 | 2016-06-29 | 江苏白雪电器股份有限公司 | Compressor crank |
| CN106438283A (en) * | 2016-10-26 | 2017-02-22 | 黄石东贝电器股份有限公司 | Crankshaft and compressor |
| CN206309552U (en) * | 2016-10-28 | 2017-07-07 | 黄石东贝电器股份有限公司 | A kind of bent axle and compressor |
| CN107476955A (en) * | 2017-08-31 | 2017-12-15 | 杭州钱江压缩机集团有限公司 | A kind of compressor crank shaft lubrication system |
| CN209179974U (en) * | 2018-10-16 | 2019-07-30 | 杭州钱江制冷压缩机集团有限公司 | Novel compressor crankshaft |
| CN209621546U (en) * | 2019-01-18 | 2019-11-12 | 大同压缩机（中山）有限公司 | A kind of compressor crankshaft |
| CN211343689U (en) * | 2019-12-05 | 2020-08-25 | 黄石东贝电器股份有限公司 | Compressor crankshaft capable of improving reliability |
| CN212563577U (en) * | 2020-09-09 | 2021-02-19 | 浙江麦迪制冷科技股份有限公司 | Crankshaft lubricating structure |
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