CN114810600A - Crankshaft, crankshaft assembly, compressor and refrigeration equipment - Google Patents
Crankshaft, crankshaft assembly, compressor and refrigeration equipment Download PDFInfo
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- CN114810600A CN114810600A CN202110074121.0A CN202110074121A CN114810600A CN 114810600 A CN114810600 A CN 114810600A CN 202110074121 A CN202110074121 A CN 202110074121A CN 114810600 A CN114810600 A CN 114810600A
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- oil
- oil groove
- hole
- crankshaft
- spiral
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/601—Shaft flexion
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
本发明公开一种曲轴、曲轴组件、压缩机和制冷设备，其中，曲轴包括主轴以及副轴，主轴设有下端开口的主油槽，主轴的外壁面设有第一螺旋油槽、第二螺旋油槽，第一螺旋油槽和第二螺旋油槽沿上下方向延伸，且第一螺旋油槽与第二螺旋油槽相对于曲轴的旋向相反且对称设置，第一螺旋油槽和第二螺旋油槽分别与主油槽连通；副轴设于主轴的上端且相对于主轴的轴线偏心设置，副轴内设有沿上下方向延伸的上油孔，上油孔的下端与第一螺旋油槽、第二螺旋油槽连通。本发明的曲轴能够实现变频变容量压缩机在正转和反转时均可以上油，满足了变频变容量压缩机运动部件的润滑需求，从而确保了该变频变容量压缩机运行的可靠性与安全性。
The invention discloses a crankshaft, a crankshaft assembly, a compressor and a refrigeration equipment, wherein the crankshaft comprises a main shaft and a secondary shaft, the main shaft is provided with a main oil groove with an open lower end, and the outer wall surface of the main shaft is provided with a first spiral oil groove and a second spiral oil groove, The first spiral oil groove and the second spiral oil groove extend in the up-down direction, and the first spiral oil groove and the second spiral oil groove are oppositely and symmetrically arranged with respect to the rotation direction of the crankshaft, and the first spiral oil groove and the second spiral oil groove are respectively communicated with the main oil groove; The auxiliary shaft is arranged on the upper end of the main shaft and is eccentrically arranged relative to the axis of the main shaft. The auxiliary shaft is provided with an upper oil hole extending in the up-down direction, and the lower end of the upper oil hole communicates with the first and second spiral oil grooves. The crankshaft of the invention can realize that the variable-frequency variable-capacity compressor can be oiled during forward rotation and reverse rotation, satisfies the lubrication requirements of the moving parts of the variable-frequency variable-capacity compressor, and thus ensures the reliability and operation of the variable-frequency variable-capacity compressor. safety.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a crankshaft, a crankshaft assembly, a compressor and refrigeration equipment.
Background
The variable-frequency variable-capacity compressor is a compressor capable of realizing double-refrigerating capacity output, and different refrigerating capacities are respectively output by the compressor in two operation modes of positive rotation and negative rotation so as to meet different refrigerating requirements of refrigerating equipment such as a refrigerator and the like. However, in the related art, the crankshaft is used as a moving part of the compressor and a lubricating oil supply system, which cannot meet the requirement of lubricating oil supply of the variable-frequency variable-capacity compressor under the normal rotation and reverse rotation operation conditions well, and thus the reliability and safety of the operation of the variable-frequency variable-capacity compressor are affected.
The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide a crankshaft, aiming at realizing that oil can be added to a variable-frequency variable-capacity compressor during forward rotation and reverse rotation so as to ensure the reliability and safety of the operation of the variable-frequency variable-capacity compressor.
To achieve the above object, the present invention provides a crankshaft comprising:
the main shaft is provided with a main oil groove with an opening at the lower end, a first spiral oil groove and a second spiral oil groove are formed in the outer wall surface of the main shaft, the first spiral oil groove and the second spiral oil groove extend in the vertical direction, the first spiral oil groove and the second spiral oil groove are opposite and symmetrically arranged relative to the rotation direction of the crankshaft, and the first spiral oil groove and the second spiral oil groove are respectively communicated with the main oil groove; and
the auxiliary shaft is arranged at the upper end of the main shaft and is eccentrically arranged relative to the axis of the main shaft, an upper oil hole extending in the vertical direction is formed in the auxiliary shaft, and the lower end of the upper oil hole is communicated with the first spiral oil groove and the second spiral oil groove.
In one embodiment, the upper oil hole and the axis of the crankshaft form an included angle.
In one embodiment, the upper oil hole includes a first oil hole communicating with the first helical oil groove and a second oil hole communicating with the second helical oil groove.
In an embodiment, the main shaft is provided with a first communication hole and a second communication hole extending along a radial direction of the main shaft, the first communication hole and the second communication hole are respectively located at two opposite sides of the main shaft, the first communication hole communicates the main oil groove and the first spiral oil groove, and the second communication hole communicates the main oil groove and the second spiral oil groove.
In an embodiment, the main shaft is provided with a third communication hole and a fourth communication hole extending in a radial direction of the main shaft, the third communication hole and the fourth communication hole are respectively located on two opposite sides of the main shaft, the third communication hole communicates the first oil hole and the first spiral oil groove, and the fourth communication hole communicates the second oil hole and the second spiral oil groove.
In one embodiment, the first oil hole extends upward and penetrates through the upper surface of the auxiliary shaft.
In an embodiment, the second oil hole extends upward and penetrates through a side wall surface of the auxiliary shaft, an oil guide groove communicated with the second oil hole is formed in an outer wall surface of the auxiliary shaft, and the oil guide groove extends upward to an upper surface of the auxiliary shaft.
In one embodiment, the oil guide groove is spirally arranged.
In an embodiment, the first oil hole is disposed at an angle to an axis of the crankshaft, and the second oil hole is disposed at an angle to the axis of the crankshaft.
In an embodiment, a pressure relief hole is formed in the main shaft, and the pressure relief hole is communicated with the main oil tank.
The invention also proposes a crankshaft assembly comprising:
a crankcase having a first shaft hole;
an eccentric shaft sleeve having a second shaft hole;
a crankshaft, a main shaft of the crankshaft being mounted in the first shaft hole, and a secondary shaft of the crankshaft being mounted in the second shaft hole; and
one end of the connecting rod is sleeved on the auxiliary shaft of the crankshaft.
In one embodiment, the crankshaft assembly further includes an oil pump member installed in the main oil sump from an opening at a lower end of the main shaft.
The invention also proposes a compressor comprising a crankshaft comprising:
the main shaft is provided with a main oil groove with an opening at the lower end, a first spiral oil groove and a second spiral oil groove are formed in the outer wall surface of the main shaft, the first spiral oil groove and the second spiral oil groove extend along the vertical direction, the first spiral oil groove and the second spiral oil groove are opposite to the rotation direction of the crankshaft and are symmetrically arranged, and the first spiral oil groove and the second spiral oil groove are respectively communicated with the main oil groove; and
the auxiliary shaft is arranged at the upper end of the main shaft and is eccentrically arranged relative to the axis of the main shaft, an upper oil hole extending in the vertical direction is formed in the auxiliary shaft, and the lower end of the upper oil hole is communicated with the first spiral oil groove and the second spiral oil groove.
The invention also proposes a refrigeration device comprising a compressor comprising a crankshaft comprising:
the main shaft is provided with a main oil groove with an opening at the lower end, a first spiral oil groove and a second spiral oil groove are formed in the outer wall surface of the main shaft, the first spiral oil groove and the second spiral oil groove extend in the vertical direction, the first spiral oil groove and the second spiral oil groove are opposite and symmetrically arranged relative to the rotation direction of the crankshaft, and the first spiral oil groove and the second spiral oil groove are respectively communicated with the main oil groove; and
the auxiliary shaft is arranged at the upper end of the main shaft and is eccentrically arranged relative to the axis of the main shaft, an upper oil hole extending in the vertical direction is formed in the auxiliary shaft, and the lower end of the upper oil hole is communicated with the first spiral oil groove and the second spiral oil groove.
The crankshaft comprises a main shaft and an auxiliary shaft, wherein the main shaft is provided with a main oil groove with an opening at the lower end, the outer wall surface of the main shaft is provided with a first spiral oil groove and a second spiral oil groove, the first spiral oil groove and the second spiral oil groove extend along the vertical direction, the first spiral oil groove and the second spiral oil groove are opposite and symmetrically arranged relative to the rotation direction of the crankshaft, and the first spiral oil groove and the second spiral oil groove are respectively communicated with the main oil groove; the auxiliary shaft is arranged at the upper end of the main shaft and is eccentrically arranged relative to the axis of the main shaft, an upper oil hole extending in the vertical direction is formed in the auxiliary shaft, and the lower end of the upper oil hole is communicated with the first spiral oil groove and the second spiral oil groove. Therefore, lubricating oil enters the main oil groove from the oil pump part, namely enters an oil supply system of the crankshaft, when the crankshaft rotates forwards, the lubricating oil in the main oil groove flows into the first spiral oil groove, and the lubricating oil spirally flows upwards along the first spiral oil groove to the upper oil hole in the auxiliary shaft; when the crankshaft rotates reversely, lubricating oil in the main oil groove flows into the second spiral oil groove, and the lubricating oil spirally flows upwards along the second spiral oil groove into the upper oil hole in the auxiliary shaft; and finally, the oil flows out of the upper oil hole so as to lubricate all moving parts of the variable-frequency variable-capacity compressor. Therefore, the crankshaft of the variable-frequency variable-capacity compressor can be used for supplying oil to the variable-frequency variable-capacity compressor in both forward rotation and reverse rotation, the lubricating requirements of moving parts of the variable-frequency variable-capacity compressor are met, the phenomenon of friction and seizure is effectively avoided, and the reliability and safety of the operation of the variable-frequency variable-capacity compressor are ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a crankshaft according to an embodiment of the present invention;
FIG. 2 is an internal detail view of the crankshaft of FIG. 1;
FIG. 3 is a schematic structural diagram of a crankshaft assembly according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
116 | Third communicating |
124 | |
| 110 | |
117 | |
200 | |
| 111 | |
118 | |
210 | |
| 112 | First |
120 | |
220 | |
| 113 | Second |
121 | |
230 | Connecting |
| 114 | First through |
122 | |
240 | |
| 115 | |
123 | The second oil hole |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be noted that if the description of "first", "second", etc. is provided in the embodiment of the present invention, the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.
The invention provides a crankshaft. The crankshaft is particularly useful in variable frequency variable capacity compressors.
Referring to fig. 1 to 3, the present invention provides a crankshaft 100, wherein the crankshaft 100 includes a main shaft 110 and a secondary shaft 120. Main shaft 110 is equipped with lower extreme open-ended main oil groove 111, main shaft 110's outer wall is equipped with first spiral oil groove 112, second spiral oil groove 113, first spiral oil groove 112 with second spiral oil groove 113 extends along upper and lower direction, just first spiral oil groove 112 with second spiral oil groove 113 for crankshaft 100's spiral is to opposite and symmetrical setting, first spiral oil groove 112 with second spiral oil groove 113 respectively with main oil groove 111 communicates. The auxiliary shaft 120 is disposed at the upper end of the main shaft 110 and is eccentrically disposed with respect to the axis of the main shaft 110, an upper oil hole 121 extending in the up-down direction is disposed in the auxiliary shaft 120, and the lower end of the upper oil hole 121 is communicated with the first spiral oil groove 112 and the second spiral oil groove 113.
Specifically, the crankshaft 100 extends in the vertical direction, and the crankshaft 100 is mainly composed of two parts, a main shaft 110 and a sub shaft 120. The main shaft 110 is generally provided at a lower end thereof with an oil pump unit 240, and the main shaft 110 is provided at a lower portion thereof with a main oil sump 111, the lower end of the main oil sump 111 being opened to allow the oil pump unit 240 to be inserted. The outer wall surface of main shaft 110 is equipped with first spiral oil groove 112 and second spiral oil groove 113, first spiral oil groove 112 with second spiral oil groove 113 for the opposite just symmetry setting of the spiral direction of bent axle 100, can understand, first spiral oil groove 112 extends along clockwise tilt up, second spiral oil groove 113 extends along anticlockwise tilt up, just first spiral oil groove 112 with second spiral oil groove 113 is about the axis of bent axle 100 is the symmetry setting. The first helical oil groove 112 and the second helical oil groove 113 are respectively communicated with the main oil groove 111, that is, the lower end of the first helical oil groove 112 extends downwards to be communicated with the main oil groove 111, and the lower end of the second helical oil groove 113 extends downwards to be communicated with the main oil groove 111.
The secondary shaft 120 is arranged eccentrically with respect to the axis of the main shaft 110, i.e. the axis of the secondary shaft 120 does not coincide with the axis of the main shaft 110. An upper oil hole 121 is formed in the auxiliary shaft 120, and a lower end of the upper oil hole 121 extends downward to communicate with the first oil spiral groove 112 and the second oil spiral groove 113. The number of the upper oil holes 121 may be one or two, and is not particularly limited. Go up oilhole 121 with the axis of bent axle 100 is the contained angle setting, also the oilhole 121 is the slope setting in upper and lower direction, so, bent axle 100 rotates the in-process, can increase the centrifugal force effect that lubricating oil received in going up oilhole 121, and then more be favorable to go up the lubricating oil upward movement in the oilhole 121 and flow out. Of course, the oil supply hole 121 may be parallel to the axis of the crankshaft 100, and is not particularly limited herein.
When crankshaft 100 according to the embodiment of the present invention is used, the lubricating oil flows into main oil groove 111 at the lower end of main shaft 110 through oil pump unit 240, that is, into the oil supply system of crankshaft 100. When the crankshaft 100 rotates in the normal direction, i.e., in the clockwise direction, the lubricating oil in the main oil groove 111 flows upward along the first spiral oil groove 112 to the upper oil holes 121 in the auxiliary shaft 120 by centrifugal force; when the crankshaft 100 rotates in the reverse direction, i.e., counterclockwise, the lubricating oil in the main oil groove 111 flows upward along the second spiral oil groove 113 to the upper oil hole 121 in the auxiliary shaft 120 by centrifugal force; finally, the lubricating oil flows out from the upper part of the upper oil hole 121 to lubricate all the moving parts of the variable frequency variable capacity compressor. That is, no matter crankshaft 100 rotates forward or reversely, the lubricating oil in main oil groove 111 can rise to upper oil hole 121 through the spiral oil groove (first spiral oil groove 112 or second spiral oil groove 113), so that the problem that crankshaft 100 cannot oil when rotating reversely can not occur, and the phenomenon of friction and blocking can be avoided.
The crankshaft 100 of the present invention includes a main shaft 110 and a sub shaft 120, wherein the main shaft 110 is provided with a main oil groove 111 with an opening at a lower end, an outer wall surface of the main shaft 110 is provided with a first spiral oil groove 112 and a second spiral oil groove 113, the first spiral oil groove 112 and the second spiral oil groove 113 extend in an up-down direction, the first spiral oil groove 112 and the second spiral oil groove 113 are opposite and symmetrically arranged with respect to a rotation direction of the crankshaft 100, and the first spiral oil groove 112 and the second spiral oil groove 113 are respectively communicated with the main oil groove 111; the auxiliary shaft 120 is disposed at the upper end of the main shaft 110 and is eccentrically disposed with respect to the axis of the main shaft 110, an upper oil hole 121 extending in the up-down direction is disposed in the auxiliary shaft 120, and the lower end of the upper oil hole 121 is communicated with the first spiral oil groove 112 and the second spiral oil groove 113. In this way, the lubricating oil enters the main oil groove 111 from the oil pump part 240, that is, enters the oil supply system of the crankshaft 100, when the crankshaft 100 rotates in the normal direction, the lubricating oil in the main oil groove 111 flows into the first oil groove 112, and the lubricating oil spirals upward along the first oil groove 112 to the upper oil hole 121 of the counter shaft 120; when the crankshaft 100 rotates reversely, the lubricating oil in the main oil groove 111 flows into the second oil groove 113, and the lubricating oil spirals upward along the second oil groove 113 to the upper oil hole 121 of the auxiliary shaft 120; and finally, flows out of the upper oil hole 121 to lubricate various moving parts of the variable frequency variable capacity compressor. Therefore, the crankshaft 100 of the present invention can achieve the effect that the variable-frequency variable-capacity compressor can be used for lubricating the moving parts of the variable-frequency variable-capacity compressor in both forward rotation and reverse rotation, and effectively avoid the phenomenon of friction locking, thereby ensuring the reliability and safety of the operation of the variable-frequency variable-capacity compressor.
Referring to fig. 2, in an embodiment, the upper oil hole 121 includes a first oil hole 122 and a second oil hole 123, the first oil hole 122 communicates with the first oil spiral groove 112, and the second oil hole 123 communicates with the second oil spiral groove 113. By providing two upper oil holes 121, namely the first oil hole 122 and the second oil hole 123, it is more beneficial for the lubricating oil to flow upward into the first oil hole 122 along the first helical oil groove 112 under the action of centrifugal force when the crankshaft 100 rotates forward, and for the lubricating oil to flow upward into the second oil hole 123 along the second helical oil groove 113 under the action of centrifugal force when the crankshaft 100 rotates backward.
In this embodiment, the main shaft 110 is provided with a first communication hole 114 and a second communication hole 115 extending in a radial direction thereof, the first communication hole 114 and the second communication hole 115 are respectively located at opposite sides of the main shaft 110, the first communication hole 114 communicates the main oil groove 111 with the first oil groove 112, and the second communication hole 115 communicates the main oil groove 111 with the second oil groove 113. It is understood that the first communication hole 114 is an inlet of the first spiral oil groove 112, and the second communication hole 115 is an inlet of the second spiral oil groove 113.
Further, in this embodiment, the main shaft 110 is provided with a third communication hole 116 and a fourth communication hole 117 extending in a radial direction thereof, the third communication hole 116 and the fourth communication hole 117 are respectively located at opposite sides of the main shaft 110, the third communication hole 116 communicates the first oil hole 122 with the first oil groove 112, and the fourth communication hole 117 communicates the second oil hole 123 with the second oil groove 113. It is to be understood that the third communication hole 116 is an outlet of the first spiral oil groove 112, and the fourth communication hole 117 is an outlet of the second spiral oil groove 113.
Here, by positioning the inlet of the first spiral oil groove 112 and the inlet of the second spiral oil groove 113 at two sides of the axis of the main shaft 110, and positioning the outlet of the first spiral oil groove 112 and the outlet of the second spiral oil groove 113 at two sides of the axis of the main shaft 110, that is, by positioning the inlet and the outlet of the first spiral oil groove 112 and the inlet and the outlet of the second spiral oil groove 113 away from the rotation center of the main shaft 110, the centrifugal force to which the lubricating oil in the first spiral oil groove 112 and the second spiral oil groove 113 is subjected can be increased, so that the lubricating oil can better flow upward along the first spiral oil groove 112 and the second spiral oil groove 113.
Referring to fig. 1 and 2, in an embodiment, the first oil hole 122 extends upward and penetrates through an upper surface of the auxiliary shaft 120. Thus, the lubricating oil flows upward along the first oil groove 112 into the first oil hole 122, and then flows out from the upper surface of the sub shaft 120 (the upper portion of the first oil hole 122) to lubricate the moving parts of the variable frequency variable displacement compressor.
Further, the second oil hole 123 extends upward and penetrates through a side wall surface of the sub shaft 120. In order to better guide out the lubricating oil in the second oil hole 123, the outer wall surface of the counter shaft 120 is provided with an oil guide groove 124 communicated with the second oil hole 123, and the oil guide groove 124 extends upward to the upper surface of the counter shaft 120. Thus, the lubricating oil in the second oil hole 123 can flow to the upper surface of the auxiliary shaft 120 along the oil guide groove 124 and flow out, thereby better lubricating each moving part of the variable frequency variable capacity compressor. Optionally, the oil guiding groove 124 is spirally disposed, so that the centrifugal force applied to the lubricating oil in the oil guiding groove 124 can be increased, and the lubricating oil can flow upwards to the upper surface of the auxiliary shaft 120 along the oil guiding groove. Of course, the oil guiding groove 124 may be parallel to the axis of the crankshaft 100, i.e. the oil guiding groove 124 is disposed in a straight line.
Referring to fig. 1 and fig. 2, in this embodiment, the first oil hole 122 is disposed at an angle with respect to an axis of the crankshaft 100, and the second oil hole 123 is disposed at an angle with respect to the axis of the crankshaft 100. That is, the first oil hole 122 and the second oil hole 123 are both inclined oil holes. By making the first oil hole 122 and the second oil hole 123 inclined, the centrifugal force applied to the lubricating oil in the process of flowing upward in the first oil hole 122 and the second oil hole 123 can be gradually increased, so that the lubricating oil can better flow upward along the first oil hole 122 and the second oil hole 123. Optionally, an included angle between the first oil hole 122 and the axis of the crankshaft 100 is smaller than an included angle between the second oil hole 123 and the axis of the crankshaft 100. Thus, the structure of the auxiliary shaft 120 can be more compact without increasing the volume of the auxiliary shaft 120, and at the same time, the lubricating oil in the first oil groove 112 can smoothly flow into the first oil hole 122, and the lubricating oil in the second oil groove 113 can smoothly flow into the second oil hole 123 and flow to the upper surface of the auxiliary shaft 120 through the oil guide groove 124.
Referring to fig. 2, on the basis of the above embodiments, a pressure relief hole 118 is formed in the main shaft 110, and the pressure relief hole 118 is communicated with the main oil groove 111. Considering that a small amount of refrigerant is dissolved in the lubricating oil, refrigerant gas may be separated from the lubricating oil during the operation of the compressor, and if the refrigerant gas is not discharged, the oil supply system may be blocked, thereby causing a problem of no oil supply or insufficient oil supply, so in order to ensure the normal oil supply of the oil supply system and the normal operation of the compressor, a pressure relief hole 118 communicating with the main oil groove 111 may be provided in the main shaft 110 to perform air exhaust and pressure relief.
The present invention further provides a crankshaft assembly 200, the compressor includes a crankshaft 100, the specific structure of the crankshaft 100 refers to the above embodiments, and since the compressor adopts all the technical solutions of all the above embodiments, the compressor at least has all the beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
In the embodiment of the present invention, the crankshaft assembly 200 further includes a crankcase 210, an eccentric bushing 220, and a connecting rod 230, the crankcase 210 having a first shaft hole; the eccentric bushing 220 has a second shaft hole; the main shaft 110 of the crankshaft 100 is mounted in the first shaft hole, and the auxiliary shaft 120 of the crankshaft 100 is mounted in the second shaft hole; one end of the connecting rod 230 is sleeved on the auxiliary shaft 120 of the crankshaft 100.
In addition, in the embodiment of the present invention, the crankshaft assembly 200 further includes an oil pump unit 240, and the oil pump unit 240 is installed in the main oil tank 111 from an opening at a lower end of the main shaft 110. Specifically, the oil pump part 240 is in interference fit with the inner wall surface of the main oil groove 111, so that the connection reliability of the oil pump part 240 and the main shaft 110 is improved, and the oil pump part 240 can be effectively prevented from falling off from the main shaft 110.
The present invention further provides a compressor, which includes a crankshaft 100, and the specific structure of the crankshaft 100 refers to the above embodiments, and since the compressor adopts all technical solutions of all the above embodiments, the compressor at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein.
In addition, the present invention further provides a refrigeration apparatus, where the refrigeration apparatus includes a compressor, and the specific structure of the compressor refers to the foregoing embodiments, and since the refrigeration apparatus employs all technical solutions of all the foregoing embodiments, the refrigeration apparatus at least has all beneficial effects brought by the technical solutions of the foregoing embodiments, and details are not repeated here. Wherein, the refrigeration equipment can be an air conditioner, a refrigerator, a heat pump water heater and the like.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110074121.0A CN114810600A (en) | 2021-01-19 | 2021-01-19 | Crankshaft, crankshaft assembly, compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110074121.0A CN114810600A (en) | 2021-01-19 | 2021-01-19 | Crankshaft, crankshaft assembly, compressor and refrigeration equipment |
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|---|---|
| CN114810600A true CN114810600A (en) | 2022-07-29 |
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| CN202110074121.0A Pending CN114810600A (en) | 2021-01-19 | 2021-01-19 | Crankshaft, crankshaft assembly, compressor and refrigeration equipment |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038950A (en) * | 1998-12-10 | 2000-07-05 | 구자홍 | Oil supply structure of compressor |
| CN1492970A (en) * | 2001-12-17 | 2004-04-28 | Lg电子株式会社 | Crankshaft in double-capacity compressor |
| JP2004144058A (en) * | 2002-10-28 | 2004-05-20 | Matsushita Refrig Co Ltd | Hermetic electric reciprocating compressor |
| CN1975161A (en) * | 2005-11-29 | 2007-06-06 | 三洋电机株式会社 | Closed type electric compressor |
| CN102720660A (en) * | 2012-06-21 | 2012-10-10 | 广州万宝集团压缩机有限公司 | Integrated oil pumping mechanism for refrigerator compressor |
| CN202579103U (en) * | 2011-11-17 | 2012-12-05 | 合肥凌达压缩机有限公司 | Oil supply crankshaft and closed reciprocating compressor using same |
| CN106438279A (en) * | 2016-09-06 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft oil way structure of compressor and compressor with crankshaft oil way structure |
| CN214304364U (en) * | 2021-01-19 | 2021-09-28 | 安徽美芝制冷设备有限公司 | Crankshafts, crankshaft assemblies, compressors and refrigeration equipment |
-
2021
- 2021-01-19 CN CN202110074121.0A patent/CN114810600A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000038950A (en) * | 1998-12-10 | 2000-07-05 | 구자홍 | Oil supply structure of compressor |
| CN1492970A (en) * | 2001-12-17 | 2004-04-28 | Lg电子株式会社 | Crankshaft in double-capacity compressor |
| JP2004144058A (en) * | 2002-10-28 | 2004-05-20 | Matsushita Refrig Co Ltd | Hermetic electric reciprocating compressor |
| CN1975161A (en) * | 2005-11-29 | 2007-06-06 | 三洋电机株式会社 | Closed type electric compressor |
| CN202579103U (en) * | 2011-11-17 | 2012-12-05 | 合肥凌达压缩机有限公司 | Oil supply crankshaft and closed reciprocating compressor using same |
| CN102720660A (en) * | 2012-06-21 | 2012-10-10 | 广州万宝集团压缩机有限公司 | Integrated oil pumping mechanism for refrigerator compressor |
| CN106438279A (en) * | 2016-09-06 | 2017-02-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft oil way structure of compressor and compressor with crankshaft oil way structure |
| CN214304364U (en) * | 2021-01-19 | 2021-09-28 | 安徽美芝制冷设备有限公司 | Crankshafts, crankshaft assemblies, compressors and refrigeration equipment |
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