CN112576509A - Compressor structure and scroll compressor - Google Patents
Compressor structure and scroll compressor Download PDFInfo
- Publication number
- CN112576509A CN112576509A CN202011395860.1A CN202011395860A CN112576509A CN 112576509 A CN112576509 A CN 112576509A CN 202011395860 A CN202011395860 A CN 202011395860A CN 112576509 A CN112576509 A CN 112576509A
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- oil
- compressor
- suction pipe
- inlet
- straight pipe
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Classifications
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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
- F04C29/028—Means for improving or restricting lubricant flow
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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
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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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
- F04C29/021—Control systems for the circulation of the lubricant
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a compressor structure and a scroll compressor. The compressor structure comprises a shell and an oil suction pipe, wherein the oil suction pipe is arranged in the shell, an inlet of the oil suction pipe is positioned below the liquid level of the oil storage area, and the oil suction pipe is provided with a first position at which a first distance is formed between the inlet and the bottom of the oil storage area and a second position at which a second distance is formed between the inlet and the bottom of the oil storage area. The compressor structure and the scroll compressor provided by the invention can adjust the amount of lubricating oil in liquid sucked by the oil suction pipe to ensure the lubricating effect of the compressor by adjusting the position of the inlet of the oil suction pipe in the oil storage area, and meanwhile, the telescopic mechanism can automatically control the position of the inlet of the oil suction pipe according to set conditions, so that the inlets of the oil suction pipe are fully filled with the frozen oil under different conditions, the oil pump can suck sufficient frozen oil all the time, and each friction pair has good lubrication, thereby improving the reliability and the service life of the compressor.
Description
Technical Field
The invention relates to the technical field of compression equipment, in particular to a compressor structure and a scroll compressor.
Background
Vertical steel shell scroll compressor bottom sets up the space for hold the refrigeration oil, stretch into the oil pump that is fixed in the lower carriage with bent axle center through-hole interference fit's drive head, the bent axle is rotatory under the drive of motor, the refrigeration oil that the oil tank was held to the casing bottom passes through the oil pump pressurization and gets into the driving disk bearing frame along bent axle center oilhole, in rethread crank was cut edge and is got into the upper bracket oil tank, the radial trompil in upper bracket oil tank, the refrigeration oil backward flow holds the oil tank to the casing bottom. And when the compressor is applied to cold regions, the outdoor placement time is long, a refrigerant in the compressor is liquefied and deposited at the bottom of an oil pool, and the density of the refrigerant oil is lower than that of a liquid refrigerant, so that the refrigerant oil floats on the liquid level of the refrigerant. When the compressor operates stably, the motor generates heat and the scroll plate compresses to heat the refrigerant, so that the refrigerant filled in the compressor is in a gaseous state, the suction of the oil pump into the refrigerant oil is not influenced, and the lubrication of each friction pair can be ensured. However, when the compressor is started, the oil pump suction inlet is wrapped by liquid refrigerant, and most of liquid entering each friction pair along the central oil hole of the crankshaft is the refrigerant, so that the friction pairs lack oil, the lubricating property is poor, and the running reliability of the compressor is reduced.
Disclosure of Invention
In order to solve the technical problem that the prior art has poor lubricity due to the fact that the amount of lubricating oil sucked in the compressor during starting is small, the compressor structure and the scroll compressor are provided, wherein the amount of lubricating oil sucked in the oil suction pipe is adjusted by adjusting the position of the inlet of the oil suction pipe.
A compressor structure comprising:
the oil storage device comprises a shell, wherein an oil storage area is arranged at the bottom of the shell;
the oil suction pipe is arranged in the shell, and the inlet of the oil suction pipe is positioned below the liquid level of the oil storage area;
the oil suction pipe has a first position where the inlet has a first distance from the bottom of the oil storage region and a second position where the inlet has a second distance from the bottom of the oil storage region, the oil suction pipe is freely switched between the first position and the second position, and the first distance is greater than the second distance.
The oil suction pipe comprises a bending section, the first end of the bending section forms the inlet, and the bending angle of the bending section is adjustable.
The oil suction pipe further comprises a first straight pipe section and a second straight pipe section, the first straight pipe is communicated with the first end of the bending section, the second straight pipe section is communicated with the second end of the bending section, and the first straight pipe section and the second straight pipe section can move relatively under the driving of the bending section.
The compressor also comprises a telescopic mechanism, wherein a first end of the telescopic mechanism is arranged on the first straight pipe section, and a second end of the telescopic mechanism is arranged on the second straight pipe section; or the first end of the telescopic mechanism is arranged on the inner surface of the shell, and the second end of the telescopic mechanism is arranged on the second straight pipe section.
The material of the telescopic mechanism comprises a temperature-sensitive material.
The compressor also comprises a timing mechanism, and the timing mechanism is electrically connected with the telescopic mechanism.
The compressor also comprises a resetting mechanism, wherein the first end of the resetting mechanism is arranged on the first straight pipe section, the second end of the resetting mechanism is arranged on the second straight pipe section, and the resetting mechanism is linked with the telescopic mechanism; or the first end of the resetting mechanism is arranged on the inner surface of the shell, the second end of the resetting mechanism is arranged on the second straight pipe section, and the resetting mechanism is linked with the telescopic mechanism.
The return mechanism includes a spring and the spring is in a compressed state when the oil suction pipe is in the second position.
The compressor also comprises an oil pump, wherein the oil pump is arranged in the shell, and a suction inlet of the oil pump is communicated with an outlet of the oil suction pipe.
A scroll compressor comprises the compressor structure.
The compressor structure and the scroll compressor provided by the invention can adjust the amount of lubricating oil in liquid sucked by the oil suction pipe to ensure the lubricating effect of the compressor by adjusting the position of the inlet of the oil suction pipe in an oil storage area, and meanwhile, the telescopic mechanism can automatically control the position of the inlet of the oil suction pipe according to set conditions (temperature, time and the like), so that the inlets of the oil suction pipes are all filled with the refrigerating oil under different conditions, the oil pump can suck sufficient refrigerating oil all the time, and each friction pair has good lubrication, thereby improving the reliability and prolonging the service life of the compressor.
Drawings
FIG. 1 is a schematic view of a compressor structure and an oil suction pipe of an embodiment of a scroll compressor according to the present invention in a first position;
FIG. 2 is a schematic view of a compressor structure and a structure of an oil suction pipe of an embodiment of a scroll compressor according to the present invention in a first position;
FIG. 3 is a schematic view of a compressor structure and an oil suction pipe of an embodiment of a scroll compressor according to the present invention in a second position;
FIG. 4 is a schematic view of a compressor structure and a structure of an oil suction pipe portion of a scroll compressor according to an embodiment of the present invention
In the figure:
1. a housing; 11. an oil storage area; 2. an oil suction pipe; 21. an inlet; 22. bending sections; 23. a first straight pipe section; 24. a second straight tube section; 3. a telescoping mechanism; 4. a reset mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The compressor structure shown in fig. 1 to 4 includes: the scroll compressor comprises a shell 1, wherein an upper support, a motor, a fixed scroll, a movable scroll and a crankshaft are arranged in the shell 1, the upper support is welded on the inner surface of the shell 1, the fixed scroll is arranged on an injured nail, the movable scroll is placed on the upper support and is oppositely arranged with the fixed scroll in a phase angle difference of 180 degrees, a cross slip ring is arranged between the movable scroll and the upper support, the crankshaft is supported by a main bearing and an auxiliary bearing, axial limit is realized through a thrust piece, under the driving of the motor, a crank part of the crankshaft drives the movable scroll to do non-autorotation rotary translation around the fixed scroll under the prior setting of the cross slip ring, and an oil storage area 11 is arranged at the bottom of the shell 1; an oil suction pipe 2, wherein the oil suction pipe 2 is arranged in the shell 1, an inlet 21 of the oil suction pipe 2 is positioned below the liquid level of the oil storage area 11, and the oil suction pipe 2 sucks the lubricating oil in the oil storage area 11 to the structures such as a crankshaft, a main bearing, an auxiliary bearing and the like for lubrication; the oil suction pipe 2 has a first position where the inlet 21 and the bottom of the oil storage area 11 have a first distance therebetween and a second position where the inlet 21 and the bottom of the oil storage area 11 have a second distance therebetween, the oil suction pipe 2 is freely switched between the first position and the second position, and the first distance is larger than the second distance, that is, in the vertical direction, the inlet 21 located at the first position is located above the inlet 21 located at the second position, when the compressor is applied in a low temperature environment, the shutdown and standing time is slightly long, the gaseous refrigerant filled in the sealed container of the compressor housing 1 is liquefied, the density of the liquid refrigerant is smaller than that of the frozen oil, so that the liquid refrigerant is deposited, a liquid refrigerant layer and a frozen oil layer are formed at the bottom of the oil storage pool, and the lowest liquid level of the frozen oil layer rises along with the accumulation of the liquid refrigerant, causing the liquid refrigerant to deposit on the lower portion of the oil storage area 11 and the lubricant to float above the liquid refrigerant, when the compressor is started, the inlet 21 is at the first position, so as to absorb liquid at the higher portion of the oil storage area 11, that is, absorbing liquid at the portion of the lubricant floating above the liquid refrigerant, so as to increase the lubricating effect, meanwhile, after the compressor works for a period of time, the internal temperature of the compressor can heat the liquid refrigerant in the oil storage area 11 into the gaseous refrigerant, so that the liquid level in the oil storage area 11 is basically not present with the liquid refrigerant, and the oil suction pipe 2 has a problem of being unable to absorb liquid, so that the inlet 21 is gradually switched to the second position, that is, the position of the inlet 21 is gradually changed downwards so as to gradually approach the bottom of the oil storage area 11, the inlet 21 is always kept below the liquid level of the oil storage area 11, and the reliability and the service life of the compressor are improved.
The oil suction pipe 2 comprises a bending section 22, the inlet 21 is formed by the first end of the bending section 22, the bending angle of the bending section 22 is adjustable, and the position of the inlet 21 is adjusted by adjusting the bending angle of the bending section 22.
The oil suction pipe 2 further comprises a first straight pipe section 23 and a second straight pipe section 24, the first straight pipe is communicated with the first end of the bending section 22, the second straight pipe section 24 is communicated with the second end of the bending section 22, the first straight pipe section 23 and the second straight pipe section 24 can move relatively under the driving of the bending section 22, the second straight pipe section 24 is far away from one end of the bending section 22 to form the inlet 21, the length of the oil suction pipe 2 is guaranteed by the aid of the first straight pipe section 23 and the second straight pipe section 24, and the oil suction pipe 2 and other related structures are fixed conveniently.
The compressor further comprises a telescopic mechanism 3, wherein a first end of the telescopic mechanism 3 is arranged on the first straight pipe section 23, and a second end of the telescopic mechanism 3 is arranged on the second straight pipe section 24, wherein preferably, the first straight pipe section 23 and the shell 1 are relatively fixed, so that the telescopic mechanism 3 can drive the second straight pipe section 24 to swing according to the bending angle change of the bending section 22, and the position of the inlet 21 is adjusted; or, the first end of the telescopic mechanism 3 is arranged on the inner surface of the shell 1, the second end of the telescopic mechanism 3 is arranged on the second straight pipe section 24, the first end of the bending section 22 is extended to be communicated with a relative structure by using the first straight pipe section 23, so that interference is avoided, and meanwhile, the second end of the telescopic mechanism 3 can move relative to the first end, so that the second straight pipe section 24 is driven to swing.
Preferably, a rigid rod is arranged on the outer wall of the second straight pipe section 24, the rigid rod is used for preventing the second straight pipe section 24 from being deformed due to the pressure of the telescopic structure to influence the oil absorption efficiency, and meanwhile, the first straight pipe section 23 can also be provided with the rigid rod to prevent the telescopic structure from influencing the structural reliability of the first straight pipe section 23 when the telescopic structure is installed in the first straight pipe section 23.
The material of telescopic machanism 3 includes temperature sensitive material, and temperature sensitive material can produce the change of length along with the change of temperature to realize flexible effect, when the temperature step-by-step becomes low, telescopic machanism 3's length shortens, otherwise, when the temperature rises gradually, telescopic machanism 3's length becomes long, has just adapted to the compressor start-up the time the temperature is lower and need imbibition in higher position and the compressor normal operating temperature is higher and need imbibition rule in lower position.
The compressor also comprises a timing mechanism which is electrically connected with the telescopic mechanism 3, the timing mechanism starts timing from the starting time of the compressor, controls the length of the telescopic mechanism 3 according to the increase of time, thereby fulfilling the purpose of adjusting the position of the inlet 21, and at the same time, the telescopic mechanism 3 comprises a pull rod and a motor, the pull rod can move along the length of the pull rod under the driving of the motor, the motor is electrically connected with the timing mechanism, and the moving distance of the pull rod is controlled according to the working condition of the control motor of the timing mechanism, the purpose of changing the length of the telescopic mechanism 3 is realized, wherein the length change of the telescopic mechanism 3 is in direct proportion to the numerical value of the timing mechanism, namely the longer the working time of the compressor is, the longer the length of the telescopic mechanism 3, the smaller the distance from the inlet 21 to the bottom of the oil storage area 11.
The oil suction pipe 2 is provided with at least two pipelines with different diameters, all the pipelines are sequentially sleeved according to the diameters, and the two adjacent pipelines can relatively slide in a sealing manner, so that the purpose of adjusting the length of the oil suction pipe 2 is achieved.
The compressor further comprises a resetting mechanism 4, a first end of the resetting mechanism 4 is arranged on the first straight pipe section 23, a second end of the resetting mechanism 4 is arranged on the second straight pipe section 24, and the resetting mechanism 4 is linked with the telescopic mechanism 3; or, a first end of the resetting mechanism 4 is disposed on the inner surface of the shell 1, a second end of the resetting mechanism 4 is disposed on the second straight pipe section 24, and the resetting mechanism 4 is linked with the telescopic mechanism 3, wherein the resetting mechanism 4 provides a driving force for moving the inlet 21 to the second position, and when the inlet 21 moves to the first position, the resetting mechanism 4 gradually accumulates a pulling force to prepare for moving the inlet 21 to the second position, so that the inlet 21 can reach an optimal position to ensure the reliability of the compressor when the compressor operates.
The return mechanism 4 comprises a spring and the spring is in a compressed state when the oil suction pipe 2 is in the second position.
The compressor further comprises an oil pump, the oil pump is arranged inside the shell 1, a suction port 21 of the oil pump is communicated with an outlet of the oil suction pipe 2, and lubricating oil is pumped into other structures inside the shell 1 by the oil pump through the oil suction pipe 2 for lubrication.
A scroll compressor comprises the compressor structure.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A compressor structure, characterized in that: the method comprises the following steps:
the oil storage device comprises a shell (1), wherein an oil storage area (11) is arranged at the bottom of the shell (1);
an oil suction pipe (2), wherein the oil suction pipe (2) is arranged in the shell (1), and an inlet (21) of the oil suction pipe (2) is positioned below the liquid level of the oil storage area (11);
the suction pipe (2) has a first position in which the inlet (21) has a first distance to the bottom of the oil storage area (11) and a second position in which the inlet (21) has a second distance to the bottom of the oil storage area (11), the suction pipe (2) being freely switchable between the first and the second position, and the first distance being larger than the second distance.
2. The compressor structure of claim 1, wherein: the oil suction pipe (2) comprises a bending section (22), the first end of the bending section (22) forms the inlet (21), and the bending angle of the bending section (22) is adjustable.
3. The compressor structure of claim 2, wherein: the oil suction pipe (2) further comprises a first straight pipe section (23) and a second straight pipe section (24), the first straight pipe is communicated with the first end of the bending section (22), the second straight pipe section (24) is communicated with the second end of the bending section (22), and the first straight pipe section (23) and the second straight pipe section (24) can move relatively under the driving of the bending section (22).
4. The compressor structure of claim 3, wherein: the compressor further comprises a telescopic mechanism (3), wherein a first end of the telescopic mechanism (3) is arranged on the first straight pipe section (23), and a second end of the telescopic mechanism (3) is arranged on the second straight pipe section (24); or the first end of the telescopic mechanism (3) is arranged on the inner surface of the shell (1), and the second end of the telescopic mechanism (3) is arranged on the second straight pipe section (24).
5. The compressor structure of claim 4, wherein: the material of the telescopic mechanism (3) comprises a temperature-sensitive material.
6. The compressor structure of claim 4, wherein: the compressor also comprises a timing mechanism which is electrically connected with the telescopic mechanism (3).
7. The compressor structure of claim 4, wherein: the compressor further comprises a resetting mechanism (4), a first end of the resetting mechanism (4) is arranged on the first straight pipe section (23), a second end of the resetting mechanism (4) is arranged on the second straight pipe section (24), and the resetting mechanism (4) is linked with the telescopic mechanism (3); or the first end of the resetting mechanism (4) is arranged on the inner surface of the shell (1), the second end of the resetting mechanism (4) is arranged on the second straight pipe section (24), and the resetting mechanism (4) is linked with the telescopic mechanism (3).
8. The compressor structure of claim 7, wherein: the return mechanism (4) comprises a spring, and the spring is in a compressed state when the oil suction pipe (2) is in the second position.
9. The compressor structure of claim 1, wherein: the compressor also comprises an oil pump, wherein the oil pump is arranged in the shell (1), and a suction inlet (21) of the oil pump is communicated with an outlet of the oil suction pipe (2).
10. A scroll compressor characterized by: comprising the compressor structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395860.1A CN112576509B (en) | 2020-12-03 | 2020-12-03 | Compressor structure and scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395860.1A CN112576509B (en) | 2020-12-03 | 2020-12-03 | Compressor structure and scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112576509A true CN112576509A (en) | 2021-03-30 |
| CN112576509B CN112576509B (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011395860.1A Active CN112576509B (en) | 2020-12-03 | 2020-12-03 | Compressor structure and scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112576509B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542689U (en) * | 1991-11-06 | 1993-06-11 | ダイキン工業株式会社 | Hermetic compressor |
| CN202597109U (en) * | 2012-04-27 | 2012-12-12 | 比亚迪股份有限公司 | Oil absorbing subassembly and scroll compressor with same |
-
2020
- 2020-12-03 CN CN202011395860.1A patent/CN112576509B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0542689U (en) * | 1991-11-06 | 1993-06-11 | ダイキン工業株式会社 | Hermetic compressor |
| CN202597109U (en) * | 2012-04-27 | 2012-12-12 | 比亚迪股份有限公司 | Oil absorbing subassembly and scroll compressor with same |
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| Publication number | Publication date |
|---|---|
| CN112576509B (en) | 2022-08-26 |
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