CN218816997U - Scroll compressor oil absorption structure - Google Patents
Scroll compressor oil absorption structure Download PDFInfo
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- CN218816997U CN218816997U CN202222766764.4U CN202222766764U CN218816997U CN 218816997 U CN218816997 U CN 218816997U CN 202222766764 U CN202222766764 U CN 202222766764U CN 218816997 U CN218816997 U CN 218816997U
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Abstract
The utility model provides a scroll compressor oil absorption structure, includes end bearing, main shaft, the bottom of main shaft is equipped with the spiral stick, be equipped with the helical blade who encircles spiral stick self on the spiral stick barred body, the last spiral runner that is equipped with of helical blade, the spiral stick is equipped with the sleeve outward. The spiral rod is fixed on the main shaft and rotates along with the main shaft, when the rotating speed of the compressor is higher, the rotating speed of the spiral rod is increased, so that lubricating oil can rapidly enter the main shaft and is conveyed to each moving part, and the dry friction between friction pairs caused by the fact that the oil film of each friction pair is influenced due to the shortage of the lubricating oil is avoided; when the rotating speed of the compressor is low, the rotating speed of the spiral rod is reduced, so that the supply of lubricating oil is reduced, and the problem that the heat exchange efficiency of the system is reduced due to the excessive lubricating oil is avoided.
Description
Technical Field
The invention relates to the field of scroll compressors, in particular to an oil suction structure of a scroll compressor.
Background
A volume type compressor is provided, a compression mechanism comprises a static scroll and a movable scroll, when the scroll compressor operates, the static scroll is fixed, the movable scroll is meshed with the static scroll to compress a refrigerant, and lubricating oil is needed to lubricate and cool each moving part during the operation of the scroll compressor to reduce the exhaust temperature. The excessive supply and the insufficient supply of the lubricating oil affect the compressor, if the lubricating oil is excessively supplied, the heat exchange efficiency of the system is reduced, and the energy efficiency of the system is reduced, and if the lubricating oil is insufficiently supplied, the formation of oil films of the friction pairs is affected, so that dry friction occurs between the friction pairs, and the reliability of the compressor is affected.
For example, chinese patent publication No. CN206708022U discloses an oil suction structure of a rotor compressor, which includes a housing, and a crankshaft and an oil suction pipe mounted in the housing. The utility model discloses an oil absorption pipe length, bent axle minor axis cooperation length and the mutual rational cooperation of oil bath have solved current rotor compressor oil absorption structural design method and can not satisfy the technical problem of the requirement of big lubricating oil charge volume and high-speed operation lubrication to the oil level height, but do not consider the oil absorption effect when different rotational speeds.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the problem that the content will be solved is exactly when handling the different rotational speeds of compressor, and oil suction device can carry out corresponding fuel feeding to the compressor of different rotational speeds. Lubricating oil is introduced into the compressor through a spiral flow passage on the spiral rod, the spiral rod is arranged on the main shaft and rotates along with the main shaft to deal with different oil pumping amounts at different rotating speeds, when the rotating speed of the compressor is higher, the rotating speed of the spiral rod is increased along with the rotating speed of the main shaft, so that the lubricating oil can more quickly enter the main shaft and can be conveyed to each moving part, and the dry friction between friction pairs caused by the formation of oil films of the friction pairs influenced by the shortage of the lubricating oil is avoided; when the rotating speed of the compressor is lower, the rotating speed of the spiral rod is reduced, so that the supply of lubricating oil is reduced, and the problem that the heat exchange efficiency of the system is reduced due to the excessive lubricating oil is avoided.
In order to realize the purpose, the utility model adopts the following technical scheme:
the utility model provides a scroll compressor oil absorption structure, includes end bearing, main shaft, the bottom of main shaft is equipped with the spiral stick, be equipped with the helical blade who encircles spiral stick self on the spiral stick barred body, the last spiral runner that is equipped with of helical blade, the spiral stick is equipped with the sleeve outward, the sleeve is fixed on the end bearing. The spiral rod is fixed at the bottom end of the main shaft, so that the spiral rod rotates along with the main shaft, and the spiral rod can generate corresponding rotating speed along with the main shaft when the compressor rotates at different speeds; the spiral rod is provided with spiral blades surrounding the spiral rod, the spiral blades are provided with spiral flow channels inclining towards the axis of the spiral rod, when the compressor works, the spiral rod rotates along with the main shaft, lubricating oil gradually rises from the spiral blades along the spiral flow channels and reaches the main shaft along the spiral rod, and then the lubricating oil is transported to each part of the compressor through the main shaft, so that each moving part is lubricated and cooled, and the exhaust temperature is reduced; the spiral rod helps and is equipped with the sleeve, and the sleeve is fixed on end bearing, and the sleeve is used for preventing lubricating oil on the spiral runner from being outwards sputtered because of high-speed rotation is centrifugal motion and leads to lubricating oil, provides a relatively stable environment simultaneously and makes the spiral rod can normally work and make lubricating oil along spiral runner upward movement. When the rotating speed of the compressor is higher, the rotating speed of the spiral rod is increased, so that lubricating oil can rapidly enter the main shaft and is conveyed to each moving part, and the formation of oil films of each friction pair is prevented from being influenced due to the shortage of the lubricating oil, so that dry friction is caused among the friction pairs; when the rotating speed of the compressor is low, the rotating speed of the spiral rod is reduced, so that the supply of lubricating oil is reduced, and the problem that the heat exchange efficiency of the system is reduced due to the excessive lubricating oil is avoided.
Preferably, the top end of the spiral rod is provided with an opening, and the spiral blade extends from the bottom end of the spiral rod to the opening. The top end of the spiral rod is provided with an opening which is a flow passage of lubricating oil. When the compressor works, lubricating oil starts to move upwards in a spiral mode from the bottom end of the spiral rod along the flow channel on the spiral blade and finally flows to the opening, the lubricating oil is gradually gathered at the opening and then continuously flows to the main shaft, the opening simultaneously plays a role in storing the lubricating oil, and when the lubricating oil at the bottom is insufficient, the lubricating oil at the opening can still support for a period of time.
Preferably, the sleeve is in clearance fit with the spiral rod, and the maximum cross-sectional dimension of the spiral blade on the spiral rod is smaller than the minimum cross-sectional dimension of the inner hole of the sleeve. The screw rod and the sleeve need be assembled together, when the installation, need be with the whole cover of sleeve on the screw rod, so helical blade's maximum cross sectional dimension is less than the minimum cross sectional dimension of sleeve hole on the screw rod, avoids the screw rod because helical blade leads to the card in the sleeve. Simultaneously sleeve and hob clearance fit, when the hob is rotatory along with the main shaft together, the hob is also in the sleeve internal rotation, and telescopic and sectional area need be a bit bigger than the cross-sectional area of corresponding department hob slightly, both avoided the hob to bump with the sleeve when rotatory, made lubricating oil again can not be because of the outside sputter of centrifugal motion, made lubricating oil can be along spiral runner upward movement to main shaft department.
Preferably, the upper end of the spiral rod is provided with an external thread, and the lower end of the main shaft is provided with an internal thread. The spiral rod upper end is equipped with the internal thread phase-match of external screw thread and main shaft lower extreme for the spiral rod can be fixed on the main shaft through threaded connection, makes the spiral rod can rotate along with the main shaft, simultaneously because the spiral rod passes through threaded connection to be fixed on the main shaft, makes this simple structure, connects reliably, is convenient for install and remove simultaneously again.
Preferably, the lower end of the spiral rod extends out of the sleeve. The sleeve is stretched out to the hob lower extreme, avoids when the sleeve can only be touch but can't touch the hob to lubricated oil mass, and the last spiral runner of hob will unable and lubricating oil contact for the hob can't transport lubricating oil to each moving part.
Preferably, the top of the sleeve is outwardly provided with a flange, and the flange of the sleeve is provided with at least two through holes. The sleeve is arranged outside the spiral rod and is in clearance fit with the spiral rod, so the sleeve needs to be fixed at a certain position to keep the original state of the sleeve, and the flanging is outwards arranged at the top of the sleeve to increase the cross section area of the sleeve, so that the sleeve has a stress surface to be fixed. The through holes are formed in the flanging of the sleeve, so that the sleeve can be fixed through the through holes in the flanging, the through holes are simple in structure and convenient to process, at least two through holes are set, and the sleeve is fixed more stably.
Preferably, the sleeve is fixed on the bottom bearing through bolt connection. The sleeve snap-on is on the end bearing for sleeve and compressor are whole, can not take place relative movement with the spiral stick, and it is fixed with the end bearing that the sleeve passes through bolted connection simultaneously, and the bolt inserts the through-hole and is connected with the end bearing, and the installation is stable, and it is convenient to dismantle.
The utility model has the advantages that: (1) The spiral rod is arranged on the main shaft, and lubricating oil is sucked through the spiral flow channel on the spiral rod, so that when the rotating speed of the compressor is higher, the rotating speed of the spiral rod is increased, the lubricating oil can rapidly enter the main shaft and is conveyed to each moving part, and the phenomenon that the formation of oil films of all friction pairs is influenced due to the shortage of the lubricating oil, and dry friction is caused among the friction pairs is avoided; when the rotating speed of the compressor is low, the rotating speed of the spiral rod is reduced, so that the supply of lubricating oil is reduced, and the problem that the heat exchange efficiency of the system is reduced due to the excessive lubricating oil is avoided. (2) The opening on the spiral rod is utilized to play a role of storing lubricating oil, and when the lubricating oil at the bottom is insufficient, the lubricating oil at the opening can still be supported for a period of time.
Drawings
Fig. 1 is a schematic structural diagram of an oil suction device.
Fig. 2 is a three-dimensional structural view of a screw rod.
Fig. 3 is a three-dimensional structural view of the sleeve.
In the figure: 1. the spiral flow channel comprises a bottom bearing, 2, a spindle, 3, a spiral rod, 4, a sleeve, 5, a bolt, 1a, a bottom bearing bottom, 2a, a spindle internal thread, 3a, a spiral rod external thread, 3b, a spiral blade, 3c, an opening, 3d, a spiral flow channel, 3e, a spiral rod upper end, 4a, inside of the sleeve, 4b, a flanging, 4c and a through hole.
Detailed Description
The invention will be further described with reference to the following drawings and specific embodiments:
as shown in fig. 1 and 2, the scroll compressor oil absorption structure comprises a bottom bearing 1 and a main shaft 2, wherein a spiral rod 3 is arranged at the bottom end of the main shaft 2, a spiral rod external thread 3a is arranged at the upper end 3e of the spiral rod, a main shaft internal thread 2a is arranged at the lower end of the main shaft 2, and the main shaft internal thread 2a is matched with the spiral rod external thread 3a to ensure that the spiral rod 3 is fixed on the main shaft 2 through threaded connection and can rotate with the main shaft 2. Be equipped with the helical blade 3b who encircles helical rod 3 self on the helical rod 3, be equipped with the helical flow path 3d to 3 axle inclinations of helical rod on the helical blade 3b, at compressor during operation, helical rod 3 is rotatory along with main shaft 2 emergence, lubricating oil is from helical blade 3b department, ascend gradually along helical flow path 3d, reach main shaft 2 departments along helical rod 3, then transport each part department of compressor through main shaft 2, thereby play and lubricate and cool each moving part, reduce exhaust temperature, when 2 rotational speeds of main shaft are different, the rotational speed of helical rod 3 also can be different thereupon, make the pump oil volume of lubricating oil different. 3 helps of hob is equipped with sleeve 4, sleeve 4 and hob 3 clearance fit, and hob 3 goes up helical blade 3 b's the minimum cross-sectional dimension that maximum cross-sectional dimension is less than sleeve 4 hole, avoids hob 3 to lead to the card in sleeve 4 because helical blade 3 b. When the spiral rod 3 rotates along with the main shaft 2, the spiral rod 3 also rotates in the sleeve 4, the cross section area of the sleeve 4 needs to be slightly larger than that of the spiral rod 3 at the corresponding position, so that the spiral rod 3 is prevented from colliding with the sleeve 4 during rotation, lubricating oil on the spiral flow channel 3d cannot be sputtered outwards when being centrifugally moved due to high-speed rotation, and meanwhile, a relatively stable environment is provided so that the spiral rod 3 can normally work to enable the lubricating oil to move upwards along the spiral flow channel 3 d. When the rotating speed of the compressor is higher, the rotating speed of the spiral rod 3 is increased, so that lubricating oil can rapidly enter the main shaft 2 and is conveyed to each moving part, and the phenomenon that the formation of oil films of each friction pair is influenced due to the shortage of the lubricating oil, so that dry friction is generated between the friction pairs is avoided; when the rotating speed of the compressor is lower, the rotating speed of the spiral rod 3 is reduced, so that the supply of lubricating oil is reduced, and the problem that the heat exchange efficiency of the system is reduced due to the excessive lubricating oil is avoided.
The top end of the spiral rod 3 is provided with an opening 3c, the opening 3c is a flow passage of lubricating oil, the spiral blade 3b is finally directed to the opening 3c from the bottom end of the spiral rod 3, when the compressor works, the lubricating oil starts to move upwards in a spiral manner along the flow passage on the spiral blade 3b from the bottom end of the spiral rod 3, and finally flows to the opening 3c, the lubricating oil is gradually gathered at the opening 3c and then continuously flows to the main shaft 2, and a storage pool is played.
The lower end of the spiral rod 3 extends out of the sleeve 4, so that the situation that when the lubricating oil quantity only can touch the sleeve 4 but cannot touch the spiral rod 3 is avoided, the spiral flow channel 3d on the spiral rod 3 cannot be in contact with the lubricating oil, and the spiral rod 3 cannot convey the lubricating oil to each moving part.
As shown in fig. 3, a flange 4b is outwardly provided at the top of the sleeve 4, 4 through holes 4c are provided on the flange 4b of the sleeve 4, the inner portion 4a of the sleeve 4 is used for protecting the spiral rod 3, and provides a good environment for the spiral rod 3 to enable the spiral rod to work normally, the sleeve 4 is arranged outside the spiral rod 3 to be in clearance fit with the spiral rod 3, so that the sleeve 4 needs to be fixed at a certain place to enable the sleeve 4 to keep an original state, and the flange 4b is outwardly provided at the top of the sleeve 4 to increase the cross-sectional area of the sleeve 4, so that the sleeve 4 has a stressed surface to be fixed. 4 through-holes 4c are arranged on the 4b flanging of the sleeve to make the sleeve 4 fixed through the 4c through-holes on the 4b flanging, even if there is a through-hole 4c fixed not hard up can not influence the fixation of whole sleeve 4, make the sleeve 4 fixed more stable.
As shown in fig. 1,2, and 3, when the compressor normally works, the screw rod 3 rotates along with the main shaft 2, and the sleeve 4 is provided outside the screw rod 3 to provide a good environment for the screw rod 3 to normally work, so that the lubricating oil gradually rises along the spiral channel from the helical blade 3b at the bottom end of the screw rod 3, and reaches the opening 3c at the top end of the screw rod 3, and then is gathered at the opening 3c, gradually rises, and then is transported to each part of the compressor along the main shaft 2. When the rotating speed of the compressor is higher, the rotating speed of the spiral rod 3 is increased, so that lubricating oil can rapidly enter the main shaft 2 and is conveyed to each moving part, and the dry friction between friction pairs caused by the fact that the formation of oil films of the friction pairs is influenced due to the shortage of the lubricating oil is avoided; when the rotating speed of the compressor is lower, the rotating speed of the spiral rod 3 is reduced, so that the supply of lubricating oil is reduced, and the problem that the heat exchange efficiency of the system is reduced due to the excessive lubricating oil is avoided.
Claims (7)
1. The utility model provides a scroll compressor oil absorption structure, includes end bearing, main shaft, its characterized in that, the bottom of main shaft is equipped with the spiral stick, be equipped with the helical blade who encircles spiral stick self on the spiral stick barred body, the last spiral runner that is equipped with of helical blade, the spiral stick is equipped with the sleeve outward, the sleeve is fixed on the end bearing.
2. The scroll compressor oil absorption structure of claim 1 wherein the top end of the spiral rod is provided with an opening and the helical blade extends from the bottom end of the spiral rod to the opening.
3. The scroll compressor oil absorption structure of claim 1 wherein the sleeve is clearance fit with the screw rod, and the maximum cross-sectional dimension of the helical blade on the screw rod is smaller than the minimum cross-sectional dimension of the inner bore of the sleeve.
4. The scroll compressor oil absorption structure as claimed in claim 1 or 2, wherein the upper end of the spiral rod is provided with an external thread, the lower end of the main shaft is provided with an internal thread, and the spiral rod is in threaded connection with the main shaft.
5. A scroll compressor oil absorption structure as claimed in any one of claims 1 to 3, wherein the lower end of the spiral rod extends out of the sleeve.
6. The scroll compressor oil absorption structure of claim 5, wherein the top of the sleeve is provided with a flange outwards, and the flange of the sleeve is provided with at least two through holes.
7. The scroll compressor oil absorption structure of claim 1 wherein the sleeve is fixed to the bottom bearing by bolting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222766764.4U CN218816997U (en) | 2022-10-20 | 2022-10-20 | Scroll compressor oil absorption structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222766764.4U CN218816997U (en) | 2022-10-20 | 2022-10-20 | Scroll compressor oil absorption structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218816997U true CN218816997U (en) | 2023-04-07 |
Family
ID=87274663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222766764.4U Active CN218816997U (en) | 2022-10-20 | 2022-10-20 | Scroll compressor oil absorption structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218816997U (en) |
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2022
- 2022-10-20 CN CN202222766764.4U patent/CN218816997U/en active Active
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