CN215719318U - Compressor and refrigeration equipment - Google Patents
Compressor and refrigeration equipment Download PDFInfo
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- CN215719318U CN215719318U CN202121996925.8U CN202121996925U CN215719318U CN 215719318 U CN215719318 U CN 215719318U CN 202121996925 U CN202121996925 U CN 202121996925U CN 215719318 U CN215719318 U CN 215719318U
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- compressor
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- crankshaft
- bearing
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Abstract
The utility model discloses a compressor and refrigeration equipment. The compressor comprises a shell, a compression assembly and an auxiliary oil supply piece, wherein an oil storage pool is arranged at the bottom of the shell; the compression assembly is arranged in the shell and comprises a crankshaft, the crankshaft is provided with a first end and a second end which are opposite in the axial direction, and a central hole is formed in the crankshaft along the axial direction of the crankshaft; the first end of bent axle is located in the oil storage tank, the second end of bent axle is connected supplementary oil supply spare, supplementary oil supply spare have with the oil outlet of centre bore intercommunication. The compressor can ensure that the lubricating oil in the oil storage tank is supplied to the compression assembly, thereby improving the performance and reliability of the compressor.
Description
Technical Field
The utility model relates to the technical field of refrigeration, in particular to a compressor and refrigeration equipment.
Background
In the related art, an oil reservoir is provided at the bottom of a casing of a compressor, and a compression assembly is provided in the casing, but it is difficult to supply lubricating oil in the oil reservoir to the compression assembly, resulting in a decrease in performance and reliability of the compressor.
SUMMERY OF THE UTILITY MODEL
The main purpose of the present invention is to propose a compressor aimed at ensuring the supply of the lubricating oil in the oil reservoir to the compression assembly.
In order to achieve the purpose, the compressor provided by the utility model comprises a shell, a compression assembly and an auxiliary oil supply piece, wherein an oil storage pool is arranged at the bottom of the shell; the compression assembly is arranged in the shell and comprises a crankshaft, the crankshaft is provided with a first end and a second end which are opposite in the axial direction, and a central hole is formed in the crankshaft along the axial direction of the crankshaft; the first end of bent axle is located in the oil storage tank, the second end of bent axle is connected supplementary oil supply spare, supplementary oil supply spare have with the oil outlet of centre bore intercommunication.
Optionally, the auxiliary oil supply piece includes the main part and protruding locating the connecting axle of main part one side, the connecting axle connect in the second end of bent axle, the oil outlet including set up in the first hole section of connecting axle with set up in the second hole section of main part.
Optionally, the body portion is disc-shaped.
Optionally, the radius of the main body part is not less than 25 mm.
Optionally, the aperture of the oil outlet is not less than 3 mm.
Optionally, the compression assembly further comprises a motor assembly and a pump body assembly, and is arranged in the housing; the pump body assembly is arranged in the shell and positioned above the motor assembly, and the crankshaft is respectively connected with the motor assembly and the pump body assembly.
Optionally, the pump body assembly comprises a main bearing, a cylinder and an auxiliary bearing; the cylinder is connected to the top of the main bearing; the auxiliary bearing is connected to the top of the cylinder, the main bearing, the cylinder and the auxiliary bearing are enclosed to form a compression cavity, the top of the auxiliary bearing and the inner wall of the shell are enclosed to form an oil storage cavity, and the compression cavity is communicated with the oil storage cavity.
Optionally, the auxiliary bearing is provided with a mounting hole, the second end of the crankshaft is rotatably connected to the mounting hole, and a spiral oil groove communicated with the oil storage cavity is formed in the inner wall of the mounting hole.
Optionally, the auxiliary bearing is further provided with an oil inlet communicated with the oil storage cavity, a sliding groove is formed in the inner peripheral wall of the cylinder and communicated with the oil inlet and the compression cavity, and a sliding sheet is arranged in the sliding groove.
Optionally, the auxiliary bearing is further provided with a throttling hole, a throttling groove is formed in the side wall, facing the auxiliary bearing, of the air cylinder, the throttling groove is communicated with the throttling hole and the compression cavity, and a throttling pipe is inserted into the throttling hole to be communicated with the oil storage cavity.
Optionally, the compressor further comprises a liquid storage tank mounted at the top of the shell.
The utility model also proposes a refrigeration plant comprising a compressor as described above.
According to the technical scheme, the compressor is electrified to drive the crankshaft to rotate, the crankshaft rotates to drive the auxiliary oil supply piece to rotate, the auxiliary oil supply piece rotates to form negative pressure at the edge of the auxiliary oil supply piece, namely, pressure difference is formed between the orifice of the oil outlet hole and the orifice of the central hole, so that lubricating oil in the oil storage pool is sucked into the oil outlet hole through the central hole of the crankshaft and flows out of the oil outlet hole to be supplied to the compression assembly, and the performance and the reliability of the compressor are guaranteed.
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 compressor according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a schematic structural view of the auxiliary oil supply member of FIG. 1;
FIG. 4 is a schematic view of the construction of the secondary bearing of FIG. 1;
FIG. 5 is a schematic view of the cylinder of FIG. 1;
FIG. 6 is a schematic structural view of another embodiment of the compressor of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at B;
FIG. 8 is a schematic structural view of a further embodiment of the compressor of the present invention;
fig. 9 is a partial enlarged view at C in fig. 8.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
26 | Secondary bearing |
| 10 | |
261 | |
| 101 | |
262 | |
| 102 | |
263 | |
| 103 | |
264 | |
| 20 | |
265 | |
| 21 | |
27 | |
| 211 | |
30 | Auxiliary |
| 22 | |
31 | |
| 23 | |
311 | |
| 24 | Main bearing | 312 | |
| 25 | |
32 | |
| 251 | |
33 | Connecting |
| 252 | Sliding |
40 | |
| 253 | Throttling groove |
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
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention provides a compressor 100, which is a rotary compressor, and can be a single-cylinder single-row compressor, a single-cylinder double-row compressor, a double-cylinder compressor, etc.
In the embodiment of the present invention, as shown in fig. 1 to 9, the compressor 100 includes a housing 10, a compression assembly 20, and an auxiliary oil supply member 30, wherein an oil reservoir 101 is disposed at the bottom of the housing 10; the compression assembly 20 is arranged in the shell 10, the compression assembly 20 comprises a crankshaft 21, the crankshaft 21 is provided with a first end and a second end which are opposite in the axial direction, and the crankshaft 21 is provided with a central hole 211 along the axial direction; the first end of bent axle 21 is located in the oil storage pond 101, the second end of bent axle 21 is connected supplementary oil feed spare 30, supplementary oil feed spare 30 have with the oil outlet 31 of centre bore 211 intercommunication.
Specifically, the casing 10 has a hollow structure to accommodate the compression assembly 20, the auxiliary oil supply 30, and other components. The compressing assembly 20 is used for compressing the refrigerant to change the refrigerant from a low-temperature low-pressure gas state to a high-temperature high-pressure gas state. The compression assembly 20 has a plurality of pairs of friction pairs therein, which are easily subject to abnormal wear if not effectively lubricated, resulting in the operation of the compression assembly 20 being hindered, thereby reducing the performance and reliability of the compressor 100.
According to the technical scheme, lubricating oil is stored in the oil storage pool 101, the compressor 100 is electrified to drive the crankshaft 21 to rotate, the crankshaft 21 rotates to drive the auxiliary oil supply piece 30 to rotate, the auxiliary oil supply piece 30 rotates to form negative pressure on the edge of the auxiliary oil supply piece, namely, pressure difference is formed between the orifice of the oil outlet hole 31 and the orifice of the central hole 211, so that the lubricating oil in the oil storage pool 101 is sucked to the orifice of the oil outlet hole 31 through the central hole 211 of the crankshaft 21 and flows out of the oil outlet hole 31 to be supplied to the compression assembly 20 to lubricate a friction pair in the compression assembly 20, smooth and smooth operation of the compression assembly 20 is guaranteed, and performance and reliability of the compressor 100 are further guaranteed.
In an embodiment, as shown in fig. 2 and 3, the auxiliary oil supply unit 30 includes a main body 32 and a connecting shaft 33 protruding from one side of the main body 32, the connecting shaft 33 is connected to the second end of the crankshaft 21, and the oil outlet 31 includes a first hole section 311 disposed in the connecting shaft 33 and a second hole section 312 disposed in the main body 32. Specifically, a counter bore is formed in the second end of the crankshaft 21 in the axial direction of the crankshaft 21, the central hole 211 and the counter bore are coaxially arranged and communicated, the aperture of the central hole 211 is smaller than that of the counter bore, the connecting shaft 33 is inserted into the counter bore, the peripheral wall of the connecting shaft 33 is in interference fit with the wall of the counter bore to fix the connecting shaft 33 and the crankshaft 21, and two ends of the first hole section 311 are respectively communicated with the central hole 211 and the second hole section 312. The auxiliary oil supply member 30 rotates, a negative pressure is formed at the orifice of the second bore section 312, and a pressure difference is formed between the orifice of the second bore section 312 and the orifice of the central bore 211, so that the lubricating oil in the oil reservoir 101 is sucked to the second bore section 312, flows out of the second bore section 312, and is supplied to the compression assembly 20, thereby ensuring the performance and reliability of the compressor 100.
Further, as shown in fig. 3, the main body portion 32 has a disk shape. Specifically, the crankshaft 21 drives the auxiliary oil supply member 30 to rotate at a high speed, the main body portion 32 is disposed in a disc shape, and the connecting shaft 33 is connected to a center of the main body portion 32 to prevent polarization from being generated when the auxiliary oil supply member 30 rotates, thereby ensuring stability of rotation of the auxiliary oil supply member 30. Alternatively, the main body 32 may be disposed in a square disk shape, which is not limited to this.
Further, as shown in fig. 3, the radius of the main body portion 32 is not less than 25 mm. Specifically, the larger the radius of the main body portion 32, the larger the negative pressure generated by the auxiliary oil supply member 30 during rotation, i.e., the larger the pressure difference between the oil outlet hole 31 and the central hole 211, the better the effect of the auxiliary oil supply member 30 in supplying oil to the compression assembly 20, and therefore, in order to ensure the effect of the auxiliary oil supply member 30 in supplying oil to the compression assembly 20, the radius of the main body portion 32 is preferably set to be greater than or equal to 25mm, including but not limited to 25mm, 30mm, 35mm, 40mm, or the like.
Further, as shown in fig. 2, the diameter of the oil outlet hole 31 is not less than 3 mm. Specifically, if the diameter of the oil outlet hole 31 is too small, the oil outlet hole 31 is prone to fail to produce oil normally, so in order to ensure that the oil outlet hole 31 can produce oil normally, the diameter of the oil outlet hole 31 is preferably set to be greater than or equal to 3mm, including but not limited to 3mm, 4mm, 5mm, or 6 mm.
In one embodiment, as shown in fig. 1, the compressing assembly 20 further includes a motor assembly 22 and a pump assembly 23, which are disposed in the housing 10; the pump body assembly 23 is disposed in the housing 10 and located above the motor assembly 22, and the crankshaft 21 is connected to the motor assembly 22 and the pump body assembly 23 respectively. Specifically, the motor assembly 22 is powered on to drive the crankshaft 21 to rotate, the crankshaft 21 rotates to drive the pump assembly 23 to work to compress a refrigerant, the crankshaft 21 rotates to drive the auxiliary oil supply member 30 to rotate at the same time, lubricating oil is supplied into the pump assembly 23 from the oil storage tank 101 to lubricate the pump assembly 23, and the pump assembly 23 is guaranteed to run smoothly, so that the reliability of the compressor 100 during running is guaranteed.
It will be appreciated that the compressor 100 further includes a reservoir 40 mounted to the top of the housing 10, as shown in FIG. 1. Therefore, the pump body assembly 23 is disposed above the interior of the housing 10, and the motor assembly 22 is disposed below the pump body assembly 23, so that the pump body assembly 23 is close to the liquid storage tank 40, thereby reducing the length of the communication channel between the pump body assembly 23 and the liquid storage tank 40, and further reducing the volume of the compressor 100
Further, as shown in fig. 2, the pump body assembly 23 includes a main bearing 24, a cylinder 25, and a sub-bearing 26; the cylinder 25 is connected to the top of the main bearing 24; the auxiliary bearing 26 is connected to the top of the cylinder 25, the main bearing 24, the cylinder 25 and the auxiliary bearing 26 enclose to form a compression cavity 27, the top of the auxiliary bearing 26 and the inner wall of the shell 10 enclose to form the oil storage cavity 102, and the compression cavity 27 is communicated with the oil storage cavity 102.
Specifically, the outer peripheral edge of the sub-bearing 26 is welded to the inner peripheral wall of the housing 10 to partition the housing 10 into an oil storage chamber 102 and an air discharge chamber 103 that do not communicate with each other. The oil storage pool 101 is arranged at the bottom of the exhaust cavity 103, the refrigerant enters the exhaust cavity 103 after being compressed by the compression cavity 27 of the pump body assembly 23, at the moment, the refrigerant is in a high-temperature and high-pressure state, namely, the interior of the exhaust cavity 103 is in a high-pressure state, the pressure in the oil storage cavity 102 is normal, and the oil storage cavity 102 is a low-pressure cavity relative to the exhaust cavity 103, so that the lubricating oil is driven to move from the oil storage pool 101 to the oil storage cavity 102 through the pressure difference between the exhaust cavity 103 and the oil storage cavity 102, and the oil storage cavity 102 is communicated with the compression cavity 27 to supply oil to the compression cavity 27, so that a friction pair in the compression cavity 27 is lubricated, and the smooth operation of the pump body assembly 23 is ensured.
In an embodiment, as shown in fig. 2 and 4, the auxiliary bearing 26 is provided with a mounting hole 261, the second end of the crankshaft 21 is rotatably connected to the mounting hole 261, and a spiral oil groove 262 communicated with the oil storage chamber 102 is provided on an inner wall of the mounting hole 261. Specifically, the pump body assembly 23 further includes a piston disposed in the cylinder 25, the auxiliary bearing 26 includes a bearing sleeve and a bearing plate connected to the bearing sleeve, the crankshaft 21 includes an auxiliary shaft section, an eccentric section and a main shaft section which are connected in sequence, the auxiliary shaft section is rotatably connected to the bearing sleeve, the piston is sleeved on the eccentric section, and the main shaft section is rotatably connected to the main bearing 24. The bearing housing is equipped with mounting hole 261 along its axial, the internal perisporium of bearing housing is equipped with spiral oil groove 262, the bearing housing deviates from the one end of bearing plate and is equipped with the recess along the radial of bearing housing, the recess both ends communicate with oil storage chamber 102 and spiral oil groove 262 respectively, so that lubricating oil enters into between bent axle 21 and the pump body subassembly 23 through recess and spiral oil groove 262, lubricate bent axle 21 and auxiliary bearing 26, the friction pair between the main bearing 24, guarantee the rotatory reliability of bent axle 21.
In an embodiment, as shown in fig. 4, 5 and 9, the secondary bearing 26 further has an oil inlet 263 communicated with the oil storage chamber 102, the inner peripheral wall of the cylinder 25 is provided with a sliding groove 251, the sliding groove 251 is communicated with the oil inlet 263 and the compression chamber 27, and the sliding groove 251 is provided with a sliding vane 252 therein. Specifically, one end of the sliding piece 252 abuts against a groove wall of the sliding groove 251 through a spring, and the other end of the sliding piece 252 extends into the compression cavity 27 and abuts against the outer peripheral surface of the piston, so that the piston is driven to rotate through the rotation of the crankshaft 21, and the suction, compression and discharge of the refrigerant in the cylinder 25 are realized. It can be understood that the rotation speed of the crankshaft 21 is very high, which results in a large number of times of the sliding vane 252 moving back and forth in the sliding groove 251, and lubricating oil is needed for lubricating the sliding vane 252 moving back and forth in the sliding groove 251, so that the oil storage chamber 102 and the sliding groove 251 are communicated through the oil inlet 263 to supply lubricating oil to the sliding groove 251 and the sliding vane 252, and the sliding vane 252 moving back and forth in the sliding groove 251 is ensured.
In one embodiment, as shown in fig. 4, 5 and 7, the auxiliary bearing 26 is further provided with an orifice 264, the side wall of the cylinder 25 facing the auxiliary bearing 26 is provided with a throttle groove 253, the throttle groove 253 communicates with the orifice 264 and the compression chamber 27, and the orifice 264 is inserted with a throttle pipe 265 to communicate with the oil storage chamber 102. Specifically, the first end of crankshaft 21 is provided with the oil feeding blade to assist lubricating oil to get into centre bore 211, because crankshaft 21's rotational speed is high, lubricating oil is easy to be entrained with gas when getting into centre bore 211, and gas enters into oil storage chamber 102 along with lubricating oil, if gas can not in time be discharged, can increase the pressure in the oil storage chamber 102, is unfavorable for lubricating oil to get into oil storage chamber 102, leads to pump body subassembly 23 to obtain effective lubrication. In this embodiment, the air in the reservoir chamber 102 sequentially passes through the throttle pipe 265, the throttle hole 264, and the throttle groove 253 to enter the compression chamber 27, so that the air in the reservoir chamber 102 is discharged, and an appropriate pressure difference is formed between the pressure in the reservoir chamber 102 and the pressure in the discharge chamber 103. Further, the end of the throttle tube 265 that is located within the reservoir 102 is positioned near the top wall of the reservoir 102 to prevent flooding with oil and the inability of air to enter the throttle tube 265.
The present invention further provides a refrigeration apparatus, which includes a compressor 100, and the specific structure of the compressor 100 refers to the above embodiments, and since the refrigeration apparatus adopts all technical solutions of all the above embodiments, the refrigeration apparatus at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated herein. The refrigeration equipment can be an air conditioner, a refrigerator, a heat pump water heater and the like.
The above description is only a preferred embodiment of the present invention, and is 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 (12)
1. A compressor, comprising:
the oil storage tank is arranged at the bottom of the shell;
the compression assembly is arranged in the shell and comprises a crankshaft, the crankshaft is provided with a first end and a second end which are opposite in the axial direction, and a central hole is formed in the crankshaft along the axial direction of the crankshaft; and
the auxiliary oil supply piece, the first end of bent axle is located in the oil storage pool, the second end of bent axle is connected the auxiliary oil supply piece, the auxiliary oil supply piece have with the oil outlet of centre bore intercommunication.
2. The compressor of claim 1, wherein the auxiliary oil supply member includes a main body and a connecting shaft protruding from one side of the main body, the connecting shaft is connected to the second end of the crankshaft, and the oil outlet includes a first hole section provided in the connecting shaft and a second hole section provided in the main body.
3. The compressor of claim 2, wherein said body portion is disc-shaped.
4. A compressor according to claim 3, wherein the radius of the main body portion is not less than 25 mm.
5. The compressor of claim 1, wherein the oil outlet hole has a diameter of not less than 3 mm.
6. The compressor of any one of claims 1-5, wherein the compression assembly further comprises:
the motor assembly is arranged in the shell; and the number of the first and second groups,
and the pump body assembly is arranged in the shell and positioned above the motor assembly, and the crankshaft is respectively connected with the motor assembly and the pump body assembly.
7. The compressor of claim 6, wherein the pump body assembly includes:
a main bearing;
the cylinder is connected to the top of the main bearing; and the number of the first and second groups,
the auxiliary bearing is connected to the top of the cylinder, the main bearing, the cylinder and the auxiliary bearing are enclosed to form a compression cavity, the top of the auxiliary bearing is enclosed to form the oil storage cavity by the inner wall of the shell, and the compression cavity is communicated with the oil storage cavity.
8. The compressor of claim 7, wherein the auxiliary bearing is provided with a mounting hole, the second end of the crankshaft is rotatably connected to the mounting hole, and a spiral oil groove communicated with the oil storage chamber is formed on an inner wall of the mounting hole.
9. The compressor as claimed in claim 7, wherein the auxiliary bearing further has an oil inlet communicated with the oil storage chamber, the inner peripheral wall of the cylinder is provided with a sliding groove communicated with the oil inlet and the compression chamber, and a sliding vane is disposed in the sliding groove.
10. The compressor as claimed in claim 7, wherein the sub-bearing is further provided with an orifice, a side wall of the cylinder facing the sub-bearing is provided with a throttle groove communicating the orifice with the compression chamber, and the orifice is inserted with a throttle pipe to communicate with the oil storage chamber.
11. A compressor as claimed in any one of claims 1 to 5, further comprising a liquid reservoir mounted at the top of said shell.
12. A refrigeration device, characterized in that it comprises a compressor according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996925.8U CN215719318U (en) | 2021-08-23 | 2021-08-23 | Compressor and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121996925.8U CN215719318U (en) | 2021-08-23 | 2021-08-23 | Compressor and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215719318U true CN215719318U (en) | 2022-02-01 |
Family
ID=80006289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121996925.8U Active CN215719318U (en) | 2021-08-23 | 2021-08-23 | Compressor and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215719318U (en) |
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2021
- 2021-08-23 CN CN202121996925.8U patent/CN215719318U/en active Active
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