CN110821830A - Screw rotor component, screw compressor and air conditioner - Google Patents

Screw rotor component, screw compressor and air conditioner Download PDF

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Publication number
CN110821830A
CN110821830A CN201911096716.5A CN201911096716A CN110821830A CN 110821830 A CN110821830 A CN 110821830A CN 201911096716 A CN201911096716 A CN 201911096716A CN 110821830 A CN110821830 A CN 110821830A
Authority
CN
China
Prior art keywords
main shaft
compression section
screw
screw rotor
oil
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
Application number
CN201911096716.5A
Other languages
Chinese (zh)
Inventor
毕雨时
曹聪
侯芙蓉
杨亚洲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201911096716.5A priority Critical patent/CN110821830A/en
Publication of CN110821830A publication Critical patent/CN110821830A/en
Pending legal-status Critical Current

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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
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • 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
    • 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
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

Abstract

The application provides a screw rotor subassembly, helical-lobe compressor and air conditioner. This screw rotor subassembly includes helical compression section (1) and main shaft (2), and helical compression section (1) and main shaft (2) separately machine-shaping, and main shaft (2) are including spiral extrusion section (3), and fixed cover of helical compression section (1) is established outside main shaft (2), and is located spiral extrusion section (3), the both ends of helical compression section (1) respectively with main shaft (2) between form sealing connection. According to the screw rotor assembly of the application, the design of the screw rotor assembly can be improved, the size design range of the screw rotor assembly is enlarged, and the design requirement of the screw compressor is better met.

Description

Screw rotor component, screw compressor and air conditioner
Technical Field
The application relates to the technical field of air conditioning, in particular to a screw rotor component, a screw compressor and an air conditioner.
Background
The bearing oil supply of the existing semi-closed screw compressor is generally divided into a left path and a right path from a main oil supply port, the left path supplies oil to a suction side bearing, the bearing after being lubricated enters a rotor cavity along with a suction refrigerant, the right path supplies oil to an exhaust side bearing, and the bearing after being lubricated enters a second tooth groove of the rotor cavity through a designed oil path.
For the screw compressor, the screw rotor component plays an important role, the overall size of the conventional screw rotor is large, so that the types of the screw rotors which can be processed by the profile grinder are few, the size of the screw rotors can easily exceed the size range which can be processed by the profile grinder, the processing range of the screw rotors is still greatly limited, and the design requirement of the screw compressor cannot be better met.
Disclosure of Invention
Therefore, the technical problem that this application will be solved lies in providing a helical-lobe rotor subassembly, helical-lobe compressor and air conditioner, can improve helical-lobe rotor subassembly's design, increases helical-lobe rotor subassembly's size design scope, satisfies helical-lobe compressor's design needs better.
In order to solve the problem, the application provides a screw rotor subassembly, including helical compression section and main shaft, helical compression section and main shaft part machine-shaping, the main shaft includes the spiral extrusion section, and the fixed cover of helical compression section is established outside the main shaft, and is located the spiral extrusion section, and the both ends of helical compression section form sealing connection between respectively and the main shaft.
Preferably, the helical compression section is hollow, the helical extrusion section of the main shaft is arranged in the cavity of the helical compression section in a penetrating mode, and an axially extending circulation channel is formed between the helical extrusion section and the inner peripheral wall of the helical compression section.
Preferably, the exhaust end of the main shaft is provided with a first communicating structure for communicating the external oil path with the circulation passage, the suction end of the main shaft includes a suction end bearing mounting portion, the suction end of the main shaft is provided with a second communicating structure, one end of the second communicating structure is communicated with the circulation passage, and the other end of the second communicating structure is communicated to the outer peripheral side of the suction end bearing mounting portion.
Preferably, the first communicating structure includes a first oil passing passage extending axially from the exhaust end of the main shaft to the screw extrusion section, and a first branch passage extending radially of the first oil passing passage and communicating with the flow passage.
Preferably, the second communicating structure includes a second branch passage, a second oil passing passage and a third branch passage, the second branch passage is located on the inner peripheral side of the helical compression section and extends to the flow passage along the radial direction of the main shaft, a first end of the second oil passing passage extends to the second branch passage along the axial direction of the main shaft, a second end of the second oil passing passage extends to the axial outer side of the helical compression section along the axial direction of the main shaft, the third branch passage is located at the suction end bearing mounting portion and extends along the radial direction of the main shaft, and the third branch passage communicates with a second end of the second oil passing passage.
Preferably, the flow-through channel is a spiral channel.
Preferably, the two ends of the spiral extrusion section are respectively provided with an annular stop flange, the spiral compression section is arranged between the two stop flanges, and the stop flange at the end of each of the two ends of the spiral compression section forms a stop seal.
According to another aspect of the present application, there is provided a screw compressor comprising a screw rotor assembly as described above.
Preferably, when the screw rotor assembly comprises a first communicating structure and a second communicating structure, the screw compressor comprises a shell, a main oil way and an oil pool are arranged on the shell, the main oil way is communicated with the oil pool, and the oil pool is communicated with the first communicating structure.
Preferably, the exhaust end of the main shaft is provided with an exhaust end bearing mounting part, and an exhaust end bearing mounting cavity at the periphery of the exhaust end bearing mounting part is communicated with the oil pool.
According to another aspect of the present application, an air conditioner is provided, which comprises the above screw rotor assembly or the above screw compressor.
The application provides a screw rotor subassembly, including helical compression section and main shaft, helical compression section and main shaft part machine-shaping, the main shaft includes the spiral extrusion section, and the fixed cover of spiral compression section is established outside the main shaft, and is located the spiral extrusion section, and the both ends of spiral compression section form sealing connection between respectively and the main shaft. The utility model provides a screw rotor subassembly, divide into two solitary parts with helical compression section and main shaft, consequently when designing screw rotor subassembly, can carry out the disconnect-type design with both, be favorable to screw rotor molded lines grinding machine to process, in the course of working, screw rotor molded lines grinding machine only need process the helical compression section, the length of the helical compression section this moment is very little, the molded lines grinding machine of same specification is adopted, the model of the helical compression section that can process can increase a lot, simultaneously can also reduce the processing degree of difficulty of helical compression section, improve the machining efficiency of helical compression section, reduce the processing cost of helical compression section, and the processing of main shaft also becomes more simple and convenient, can improve screw rotor subassembly's design, increase screw rotor subassembly's size design scope, satisfy screw compressor's design needs better.
Drawings
FIG. 1 is a perspective view of a screw rotor assembly according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional structural schematic view of a progressive cavity rotor assembly of an embodiment of the present application;
FIG. 3 is a perspective view of a helical compression section of a screw rotor assembly according to an embodiment of the present disclosure without seals at both ends;
FIG. 4 is a cross-sectional view of a helical compression section of a screw rotor assembly of an embodiment of the present application with seals at both ends removed;
fig. 5 is a perspective view of a main shaft of a screw rotor assembly according to an embodiment of the present application;
FIG. 6 is a cross-sectional structural view of a main shaft of a screw rotor assembly of an embodiment of the present application;
fig. 7 is a sectional structure view of a screw compressor according to an embodiment of the present application.
The reference numerals are represented as:
1. a helical compression section; 2. a main shaft; 3. a screw extrusion section; 4. a flow-through channel; 5. a suction end bearing mounting portion; 6. an exhaust end bearing mounting portion; 7. a first oil passage; 8. a first branch channel; 9. a second branch channel; 10. a second oil passing channel; 11. a third branch channel; 12. a stop flange; 13. a housing; 14. a main oil path; 15. an oil sump; 16. a suction end bearing; 17. and an exhaust end bearing.
Detailed Description
With reference to fig. 1 to 7, according to an embodiment of the present application, the screw rotor assembly includes a helical compression section 1 and a main shaft 2, the helical compression section 1 and the main shaft 2 are separately formed by machining, the main shaft 2 includes a helical extrusion section 3, the helical compression section 1 is fixedly sleeved outside the main shaft 2 and is located on the helical extrusion section 3, and two ends of the helical compression section 1 are respectively connected with the main shaft 2 in a sealing manner.
The screw rotor component divides the spiral compression section 1 and the main shaft 2 into two independent parts, therefore, when the screw rotor component is designed, the screw rotor component and the screw rotor component can be designed in a separated mode, the processing of the screw rotor profile grinder is facilitated, in the processing process, the screw rotor profile grinder only needs to process the spiral compression section 1, the length of the spiral compression section 1 is very small, the types of the spiral compression section 1 which can be processed can be greatly increased by adopting the profile grinder with the same specification, meanwhile, the processing difficulty of the spiral compression section 1 can be reduced, the processing efficiency of the spiral compression section 1 is improved, the processing cost of the spiral compression section 1 is reduced, and the processing of the main shaft 2 is simpler and more convenient, the design of the screw rotor component can be improved, the size design range of the screw rotor component is enlarged, and the design requirement of the screw compressor is better met.
After helical compression section 1 and main shaft 2 separated machine-shaping, can overlap and establish together to after the installation targets in place, through modes fixed connection such as welding or key-type connection together, also can adopt terminal surface nut to compress tightly complex structure fixed connection together, make main shaft 2 can effectively transmit the output torque of motor to helical compression section 1.
Preferably, the helical compression section 1 is hollow, the helical extrusion section 3 of the main shaft 2 is arranged in the hollow cavity of the helical compression section 1 in a penetrating way, and an axially extending flow channel 4 is formed between the helical extrusion section 3 and the inner peripheral wall of the helical compression section 1. Set up helical compression section 1 into hollow structure, can reduce the blank cost on the one hand, make helical compression section 1's processing simple and convenient more, on the other hand is convenient for provide convenience for follow-up circulation passage 4's design, make the oil circuit can directly can cool off the cavity internal surface through 1 inside flows of helical compression section, can make not only so to rotor chamber second tooth's socket behind the oil lubrication bearing of exhaust side simultaneously, reduce station-used tonifying qi volume space, increase the tonifying qi volume of compressor, improve tonifying qi ability, and then promote the compressor efficiency.
The screw compression section 1 can be cast, the volume V of the cavity is determined by the shell strength of the screw compression section 1, the strength required by meshing and compression of the screw rotor under the limit working condition is required to be met to design a V value, the V value is maximized as far as possible, and the cost is reduced to the maximum extent.
The exhaust end of the main shaft 2 is provided with a first communicating structure for communicating an external oil path with the circulating channel 4, the suction end of the main shaft 2 comprises a suction end bearing installation part 5, the suction end of the main shaft 2 is provided with a second communicating structure, one end of the second communicating structure is communicated with the circulating channel 4, and the other end of the second communicating structure is communicated to the outer peripheral side of the suction end bearing installation part 5. Through setting up first communication structure, can conveniently introduce the lubricating oil of exhaust side in circulation passageway 4 through first communication structure, then lubricating oil flows to the induction end of main shaft 2 along circulation passageway 4, and flow to the periphery side of induction end bearing installation department 5 through the second communication structure, lubricate the induction end bearing 16 of induction end bearing installation department 5 periphery side, after lubricating induction end bearing 16, mix with the induction end refrigerant, then flow to the exhaust end along the periphery of helical compression section 1, form the circulation and flow. The main oil supply enters the exhaust side lubricating bearing and then directly enters the interior of the screw rotor, the temperature of the inner surface of the oil cooling rotor reduces the exhaust temperature of the compressor, the effects of improving the operation reliability and widening the operation range of the compressor are achieved, and finally the main oil supply flows into the air suction side to lubricate the air suction end bearing 16 again.
The first communication structure comprises a first oil passing channel 7 and a first branch channel 8, the first oil passing channel 7 axially extends from the exhaust end of the main shaft 2 to the spiral extrusion section 3, and the first branch channel 8 radially extends along the first oil passing channel 7 and is communicated with the flow channel 4.
In this embodiment, the first oil passing channel 7 is located on the central axis of the main shaft 2 and is coaxially disposed with the main shaft 2, and the first branch channel 8 is located on the same diameter of the main shaft 2, so that the lubricating oil can flow from both ends of the first branch channel 8 after reaching the first branch channel 8, thereby improving the uniformity of the distribution of the lubricating oil. Preferably, when the number of the first branch passages 8 is plural, the plural first branch passages 8 are evenly distributed around the circumferential direction of the first oil passing passage 7.
The second communicating structure comprises a second branch channel 9, a second oil passing channel 10 and a third branch channel 11, the second branch channel 9 is located on the inner peripheral side of the helical compression section 1 and extends to the circulating channel 4 along the radial direction of the main shaft 2, the first end of the second oil passing channel 10 extends to the second branch channel 9 along the axial direction of the main shaft 2, the second end of the second oil passing channel 10 extends to the axial outer side of the helical compression section 1 along the axial direction of the main shaft 2, the third branch channel 11 is located at the air suction end bearing mounting part 5 and extends along the radial direction of the main shaft 2, and the third branch channel 11 is communicated with the second end of the second oil passing channel 10.
The two second branch channels 9 are positioned on the same diameter, the second oil passing channel 10 is coaxial with the main shaft 2, and the two third branch channels 11 are also positioned on the same diameter, so that the distribution uniformity of lubricating oil in the conveying process can be improved. Of course, the number of the branch passages is not necessarily two, and may also be one, three, or more than three, and preferably, when the number of the branch passages is plural, the plural branch passages are uniformly distributed around the circumferential direction of the second oil passing passage 10.
Taking two branch passages as an example, the diameter of the first oil passing passage 7 is d1, the diameter of the first branch passage 8 is d2, the diameter of the second branch passage 9 is d3, the diameter of the second oil passing passage 10 is d4, and the diameter of the third branch passage 11 is d5, wherein d1 is d2/2, d3/2 is d4 which is more than or equal to d5/2, and the sectional area is divided by 2 because the three branch passages are divided into two sections. The bore diameter of the third branch passage 11 needs to be designed according to the oil supply amount of the suction end bearing 16, and should not be too large or too small. d5 is too large, the oil supply is too large, and the bearing can slip; if d5 is too small, the oil supply is too small, and the bearings will be lubricated insufficiently.
Preferably, circulation passageway 4 is helical channel, can form spiral flow path for lubricating oil can form the spiral flow when flowing in circulation passageway 4, thereby with the helical compression section between 1 form more abundant contact, make things convenient for lubricating oil to form the oil film in circulation passageway 4 more moreover, realize the sealed to circulation passageway 4, the convenience forms pressure differential at the suction end and the exhaust end of the circulation passageway of lubricating oil, guarantees the continuous steady flow of lubricating oil.
Two ends of the spiral extrusion section 3 are respectively provided with an annular stop flange 12, the spiral compression section 1 is arranged between the two stop flanges 12, and the two ends of the spiral compression section 1 are respectively provided with a stop seal between the stop flanges 12 at the ends thereof. In this embodiment, the spiral compression section 1 is formed with sealed end plate at both ends, sealed end plate is formed with the backstop step, in the installation, can make spiral compression section 1 rotate for two backstop flanges 12 spirals, thereby make spiral compression section 1 can follow between exhaust end installation to two backstop flanges 12, after spiral compression section 1 installed in place, the backstop step that spiral compression section 1 is close to the end of breathing in forms the backstop with the backstop flange 12 of this end and seals, make the both ends of spiral compression section 1 all form the butt joint between with main shaft 2 and compress tightly sealed, in addition lubricating oil forms the oil film seal in spiral compression section 1 inside, thereby make form good sealed effect between spiral compression section 1 and the main shaft 2.
According to an embodiment of the present application, the screw compressor comprises a screw rotor assembly, which is the screw rotor assembly described above.
When screw rotor subassembly included first access structure and second access structure, screw compressor includes casing 13, is provided with main oil circuit 14 and oil bath 15 on the casing 13, main oil circuit 14 and oil bath 15 intercommunication, oil bath 15 and first access structure intercommunication.
An exhaust end bearing mounting part 6 is arranged at the exhaust end of the main shaft 2, and an exhaust end bearing mounting cavity at the periphery of the exhaust end bearing mounting part 6 is communicated with an oil pool 15.
After main oil supply is led into an exhaust side lubricating exhaust end bearing 17 through a main oil path 14, the main oil supply enters a cavity of the spiral compression section 1 through an oil path inside the main shaft 2 to cool the temperature of the inner surface of a rotor, and finally, the refrigeration oil flows into an air suction side through the oil path inside the main shaft 2 from the cavity of the spiral compression section 1 to lubricate an air suction end bearing 16.
The whole oil circuit can form a disposable closed loop through the main oil circuit 14, the first oil passage 7, the first branch passage 8, the circulation flow passage 4, the second branch passage 9, the second oil passage 10 and the third branch passage 11, and the problem of uneven oil distribution of the segmented oil circuit in the prior art can be solved.
More importantly, the structure can enable the screw rotor to form a self-cooling circulation. The refrigeration oil enters the cavity of the spiral compression section 1 of the screw rotor assembly, the inner surface of the cavity can be cooled, and the refrigerant in the outer surface of the spiral compression section 1 and the compression cavity is cooled through heat transfer, so that the exhaust temperature of the compressor is reduced, the reliability of the compressor can be improved, and the operation range of the compressor can be widened.
Meanwhile, the structure prevents oil supplied to the exhaust side from lubricating the bearing and then does not enter the second tooth groove of the rotor cavity, so that the occupied air supplementing volume space can be reduced, the air supplementing capacity is improved, and the energy efficiency of the compressor is further improved.
According to the screw compressor, lubricating oil enters the bearing cavity at the exhaust end of the bearing seat from the main oil way 14 under the action of exhaust high pressure, and when the internal lubricating oil is accumulated to a certain height, the internal lubricating oil enters the internal oil way through the first oil passing channel 7 on the main shaft 2. Because all be between helical compression section 1 and the main shaft 2 little clearance fit, in addition the oil film of lubricating oil is sealed to let screw rotor subassembly both sides form the circulation that pressure differential promoted lubricating oil, but can not form the state of high, low pressure both sides UNICOM.
According to an embodiment of the present application, an air conditioner includes the above-described screw rotor assembly or the above-described screw compressor.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.

Claims (11)

1. The utility model provides a screw rotor subassembly, its characterized in that, includes helical compression section (1) and main shaft (2), helical compression section (1) with main shaft (2) separately machine-shaping, main shaft (2) are including spiral extrusion section (3), the fixed cover of helical compression section (1) is established outside main shaft (2), and is located on spiral extrusion section (3), the both ends of helical compression section (1) respectively with form sealing connection between main shaft (2).
2. The screw rotor assembly according to claim 1, wherein the helical compression section (1) is hollow, the helical extrusion section (3) of the main shaft (2) is arranged in the cavity of the helical compression section (1) in a penetrating way, and an axially extending flow channel (4) is formed between the helical extrusion section (3) and the inner peripheral wall of the helical compression section (1).
3. The screw rotor assembly according to claim 2, wherein the exhaust end of the main shaft (2) is provided with a first communicating structure communicating an external oil path with the circulating passage (4), the suction end of the main shaft (2) includes a suction end bearing mounting portion (5), the suction end of the main shaft (2) is provided with a second communicating structure, one end of the second communicating structure is communicated with the circulating passage (4), and the other end is communicated to the outer peripheral side of the suction end bearing mounting portion (5).
4. The screw rotor assembly according to claim 3, wherein the first communicating structure comprises a first oil passing channel (7) and a first branch channel (8), the first oil passing channel (7) axially extends from the exhaust end of the main shaft (2) to the screw extrusion section (3), and the first branch channel (8) extends along the radial direction of the first oil passing channel (7) and is communicated with the flow channel (4).
5. A screw rotor assembly according to claim 3, wherein the second communication structure comprises a second branch channel (9), a second oil passing channel (10) and a third branch channel (11), the second branch channel (9) is located on the inner peripheral side of the helical compression section (1), and extends to the flow channel (4) along the radial direction of the main shaft (2), the first end of the second oil passing channel (10) extends to the second branch channel (9) along the axial direction of the main shaft (2), the second end of the second oil passing channel (10) extends to the axial outer side of the spiral compression section (1) along the axial direction of the main shaft (2), the third branch channel (11) is positioned at the air suction end bearing mounting part (5), and the third branch channel (11) is communicated with the second end of the second oil passing channel (10).
6. A screw rotor assembly according to claim 2, wherein the flow channel (4) is a helical channel.
7. The screw rotor assembly according to claim 1, wherein the two ends of the screw extrusion section (3) are respectively provided with an annular stop flange (12), the screw compression section (1) is arranged between the two stop flanges (12), and a stop seal is formed between the stop flanges (12) at the two ends of the screw compression section (1).
8. A screw compressor comprising a screw rotor assembly, characterized in that the screw rotor assembly is as claimed in any one of claims 1 to 7.
9. Screw compressor according to claim 8, wherein when the screw rotor assembly comprises a first communicating structure and a second communicating structure, the screw compressor comprises a housing (13), a main oil path (14) and an oil sump (15) are arranged on the housing (13), the main oil path (14) is communicated with the oil sump (15), and the oil sump (15) is communicated with the first communicating structure.
10. Screw compressor according to claim 9, characterized in that the discharge end of the main shaft (2) is provided with a discharge end bearing mounting (6), and a discharge end bearing mounting cavity at the periphery of the discharge end bearing mounting (6) is communicated with the oil sump (15).
11. An air conditioner characterized by comprising the screw rotor assembly of any one of claims 1 to 7 or the screw compressor of any one of claims 8 to 10.
CN201911096716.5A 2019-11-11 2019-11-11 Screw rotor component, screw compressor and air conditioner Pending CN110821830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911096716.5A CN110821830A (en) 2019-11-11 2019-11-11 Screw rotor component, screw compressor and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911096716.5A CN110821830A (en) 2019-11-11 2019-11-11 Screw rotor component, screw compressor and air conditioner

Publications (1)

Publication Number Publication Date
CN110821830A true CN110821830A (en) 2020-02-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911096716.5A Pending CN110821830A (en) 2019-11-11 2019-11-11 Screw rotor component, screw compressor and air conditioner

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Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022179132A1 (en) * 2021-02-26 2022-09-01 珠海格力电器股份有限公司 Rotor assembly, compressor and air conditioner
CN116624389A (en) * 2023-06-19 2023-08-22 浙江卓佑通用机械有限公司 Screw rotor and screw air compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022179132A1 (en) * 2021-02-26 2022-09-01 珠海格力电器股份有限公司 Rotor assembly, compressor and air conditioner
CN116624389A (en) * 2023-06-19 2023-08-22 浙江卓佑通用机械有限公司 Screw rotor and screw air compressor
CN116624389B (en) * 2023-06-19 2023-10-20 浙江卓佑通用机械有限公司 Screw rotor and screw air compressor

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