CN111102161A

CN111102161A - Lubricating oil quantity adjusting structure, compressor and refrigerator

Info

Publication number: CN111102161A
Application number: CN201911120513.5A
Authority: CN
Inventors: 张率华; 熊克强; 申婷; 严耀宗
Original assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Current assignee: Gree Green Refrigeration Technology Center Co Ltd of Zhuhai; Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-05-05
Anticipated expiration: 2039-11-15
Also published as: CN111102161B

Abstract

The invention provides a lubricating oil quantity adjusting structure, a compressor and a refrigerator. The lubricating oil quantity adjusting structure comprises an air cylinder seat and a crankshaft, wherein the air cylinder seat is provided with an air cylinder part, the crankshaft is rotatably connected with the air cylinder seat, a groove is formed in the air cylinder part, an oil quantity adjusting assembly is further arranged between the groove and the crankshaft, and the oil quantity adjusting assembly can adjust the quantity of lubricating oil thrown out by the crankshaft and thrown into the groove. According to the lubricating oil flow adjusting structure, the compressor and the refrigerator, the lubricating oil through-flow adjusting assembly is arranged between the groove and the crankshaft, the lubricating oil amount thrown out of the groove by the crankshaft is adjusted and controlled, and the phenomena that the oil amount of the exhaust gas of the compressor is large and the oil output rate of the system is high due to the fact that the oil amount accumulated in the groove is too much are effectively avoided.

Description

Lubricating oil quantity adjusting structure, compressor and refrigerator

Technical Field

The invention belongs to the technical field of compressor manufacturing, and particularly relates to a lubricating oil quantity adjusting structure, a compressor and a refrigerator.

Background

Along with the continuous improvement of the rotating speed of the piston compressor, the oil throwing amount of the crankshaft with oil is continuously increased, lubricating oil thrown out by the crankshaft with oil moves in a parabolic shape and is scattered in a shell of the whole compressor, particularly, the lubricating oil amount at the U-shaped groove of the cylinder hole of the cylinder seat is more and more accumulated along with the improvement of the rotating speed of the crankshaft, and in the reciprocating motion process of the piston, the possibility that the lubricating oil accumulated at the U-shaped groove enters the cylinder along with the reciprocating motion of the piston and the entering oil amount is increased, so that the increase of the oil throwing amount of the exhaust belt after compression and the higher oil throwing rate of a system are caused, and the heat transfer efficiency and the performance. The general processing mode is that a through hole is formed in a U-shaped groove, lubricating oil thrown out by a crankshaft flows through the U-shaped groove of the cylinder seat and then flows out downwards from an oil through hole, so that oil accumulation at the U-shaped groove of the cylinder seat is reduced, the accumulation of the amount of the lubricating oil entering a cylinder hole can be partially reduced to a certain extent, but the problem that the lubricating oil flows through a piston from the U-shaped groove of the cylinder seat firstly and is not solved fundamentally is solved.

Disclosure of Invention

Therefore, the technical problem to be solved by the invention is to provide a lubricating oil flow adjusting structure, a compressor and a refrigerator, wherein the lubricating oil through-flow adjusting assembly is arranged between the groove and the crankshaft to adjust and control the lubricating oil amount thrown out of the groove by the crankshaft, so that the phenomena of large oil amount in the exhaust gas of the compressor and high oil output rate of the system caused by excessive oil amount accumulated in the groove are effectively avoided.

In order to solve the problems, the invention provides a lubricating oil amount adjusting structure which comprises a cylinder seat and a crankshaft, wherein the cylinder seat is provided with a cylinder part, the crankshaft is rotationally connected with the cylinder seat, a groove is formed in the cylinder part, an oil amount adjusting assembly is arranged between the groove and the crankshaft, and the oil amount adjusting assembly can adjust the amount of lubricating oil thrown out of the crankshaft into the groove.

Preferably, the oil quantity adjusting assembly comprises a first component and a second component, wherein the first component is provided with a plurality of first through holes, the second component is provided with second through holes, and relative movement can be generated between the second component and the first component so as to adjust the overlapping flow area of the first through holes and the second through holes.

Preferably, the first component has two guide walls extending towards one side of the second component, the two guide walls are respectively arranged at two opposite ends of the first component, guide grooves are formed in the guide walls, and the second component is inserted into the guide grooves.

Preferably, one end of the second component, which is matched with the guide groove, is of a spherical structure.

Preferably, an elastic resetting piece is further arranged between the first component and the second component, and the stretching direction of the elastic resetting piece is in the stretching direction of the first component and the second component.

Preferably, the elastic restoring member includes a spring.

Preferably, the first part is fixedly connected with the cylinder block.

Preferably, the second part is on a side of the first part facing the crankshaft.

The invention also provides a compressor which comprises the lubricating oil quantity adjusting structure.

The invention also provides a refrigerator comprising the compressor.

According to the lubricating oil quantity adjusting structure, the compressor and the refrigerator, the oil quantity adjusting assembly is arranged between the groove and the crankshaft, so that lubricating oil thrown out by the crankshaft can be adjusted and controlled, the oil quantity of the lubricating oil entering the groove is effectively controlled, and the phenomena that the oil quantity of the exhaust gas of the compressor is large and the oil output rate of a system is high due to the fact that the lubricating oil in the groove is too much in accumulated oil quantity are effectively avoided.

Drawings

Fig. 1 is a schematic structural view of a lubricating oil amount adjusting structure according to an embodiment of the present invention;

FIG. 2 is a front view of the oil level adjustment assembly of FIG. 1;

FIG. 3 is a side view of the oil level adjustment assembly of FIG. 2;

fig. 4 is a schematic view of the oil level adjusting assembly of fig. 1 after relative movement of the first member and the second member, wherein arrows indicate the direction of movement of the second member, black areas indicate the area of the second member blocking the flow holes of the first member, and shaded areas indicate the area of flow of lubricating oil.

The reference numerals are represented as:

1. a cylinder block; 11. a groove; 2. a crankshaft; 3. an oil quantity adjusting assembly; 31. a first member; 311. a first through-flow aperture; 312. a guide wall; 313. a guide groove; 32. a second component; 321. a second vent hole; 33. an elastic reset piece.

Detailed Description

Referring to fig. 1 to 4 in combination, according to an embodiment of the present invention, there is provided a lubricating oil amount adjusting structure, including a cylinder block 1 and a crankshaft 2, where the cylinder block 1 has a cylinder portion, the crankshaft 2 is rotatably connected to the cylinder block 1, and a groove 11 is formed in the cylinder portion, it can be understood that the groove 11 penetrates through the inside and the outside of the cylinder portion, and the arrangement is to facilitate assembly of a connecting rod in a compressor, and the groove may be a U-shaped groove in the prior art or a groove of another shape. In this technical scheme recess 11 with set up between 2 bent axles oil mass adjusting part 3 to thereby can be to by the lubricating oil that 2 bent axles were thrown away carries out the regulation control and effectively gets into the oil mass of the lubricating oil in the recess 11 effectively stops lubricating oil accumulation oil mass in the recess and leads to the phenomenon that compressor exhaust area oil mass is big, the system oil-spraying rate is high to take place.

The oil amount adjusting assembly 3 may be implemented in various manners, for example, in a simplest manner, the oil baffle may be blocked between the crankshaft 2 and the groove 11 when the thrown oil amount of the crankshaft 2 is increased, and the oil baffle may be enlarged between the oil baffle and the cylinder block 1 when the thrown oil amount of the crankshaft 2 is decreased, so as to control and adjust the amount of the lubricating oil entering the groove 11, as a preferred technical solution, the oil amount adjusting assembly 3 includes a first member 31 and a second member 32, the first member 31 has a plurality of first through holes 311, the second member 32 has a second through hole 321, a relative movement between the second member 32 and the first member 31 can be generated to adjust the through area formed by overlapping the first through hole 311 and the second through hole 321, that is, in this embodiment, the relative position between the first member 31 and the second member 32 determines the overlapping shielding degree and the overlapping penetration degree of each first through-hole 311 and each second through-hole 321, and the overlapping penetration degree is directly and positively correlated with the flow area of the lubricating oil, and at this time, when the amount of the lubricating oil thrown out by the crankshaft 2 is large, the flow area is reduced, and further the amount of the lubricating oil entering the groove 11 is reduced, so that the excessive oil amount is prevented from accumulating in the groove 11; when the amount of lubricating oil thrown out by the crankshaft 2 is small, the flow area is increased, the amount of lubricating oil entering the groove 11 is increased, and the lubricating requirement on the kinematic pair at the groove 11 is met. It is understood that the first through holes 311 and the second through holes 321 are arranged in a one-to-one correspondence manner, and both may have the same shape, for example, a rectangle, a triangle, or the like, or may have different hole shapes, for example, the first through holes 311 are triangular or diamond-shaped, the second through holes 321 are circular, and the specific shape may be selected according to specific requirements.

Preferably, the first member 31 has two guide walls 312 extending toward one side of the second member 32, the two guide walls 312 are respectively located at two opposite ends of the first member 31, as shown in fig. 3, the two guide walls 312 are respectively located at the upper and lower ends of the first member 31, a guide groove 313 is formed on the guide wall 312, and the second member 32 is inserted into the guide groove 313, so that when an external force is applied to the second member 32, the second member 32 slides under the guide of the guide groove 313.

As a more preferable embodiment, an elastic returning element 33 is further disposed between the first component 31 and the second component 32, the elastic returning element 33 may include a spring, for example, the extending and retracting direction of the elastic returning element 33 is in the extending and retracting direction of the first component 31 and the second component 32, at this time, the impact force of the lubricating oil thrown out by the crankshaft 2 may push the second component 32 to force the second component 32 to generate relative movement with respect to the first component 31, preferably, the second component 32 is located at the side of the first component 31 facing the crankshaft 2, at this time, the impact (impact force or tangential force) of the lubricating oil thrown out by the crankshaft 2 may be directly utilized to push the generation of the relative displacement of the second component 32, and it can be understood that, at this time, the mass of the second component 32 should be selected to be lower, the rigidity of the elastic resetting piece 33 should be selected to be small so as to smoothly push the second component 32 to generate displacement by using the impact force of the lubricating oil, and the specific selection of the mass and the rigidity can be finally obtained by performing test simulation according to different machine types. In order to further make the relative movement of the second member 32 smoother, it is preferable that one end of the second member 32, which is engaged with the guide groove 313, is a spherical structure, so as to ensure that the second member 32 and the guide groove 313 are in line contact, and reduce the friction force between the first member 31 and the second member 32 in the relative movement.

Preferably, the second part 32 is further provided with a plurality of oil blocking pieces on a side facing the crankshaft 2, that is, a side facing away from the first part 31, and the oil blocking pieces extend toward a side of the crankshaft 2 so as to fully utilize the impulse (impact force or tangential force) of the lubricating oil thrown off by the crankshaft 2.

Fig. 2 is a front view of the oil amount adjusting assembly according to the present invention, which corresponds to a state where the lubricating oil thrown out from the crankshaft 2 is relatively small, and the first through-hole 311 and the through-hole of the second through-hole 321 are completely aligned (the through-flow area is the largest), so that the lubricating oil thrown out from the crankshaft 2 can be guaranteed to be thrown to the groove 11 as much as possible, and thus sufficient lubrication can be achieved; fig. 4 shows a state corresponding to a case where the amount of the lubricating oil thrown out of the crankshaft 2 is large, and at this time, overlap shielding occurs between the first through-hole 311 and the second through-hole 321, thereby reducing the flow area of the first through-hole 311 or the second through-hole 321, and at this time, the phenomenon that the excessive lubricating oil is accumulated at the groove 11 is prevented, but it is sufficient to ensure the basic lubrication. It can be further understood that, when the rotation speed of the crankshaft 2 is reduced, the amount of lubricating oil thrown out correspondingly is reduced, and the impulse is also reduced, so that the impact (thrust) applied to the second component 32 correspondingly is reduced, and the first component 31 and the second component 32 are gradually restored to the state shown in fig. 2 under the action of the elastic restoring member 33, and it can be seen that the automatic adjustment control of the amount of oil thrown out of the crankshaft 2 can be realized by adopting the technical solution of the present invention.

Further, the first member 31 is fixedly connected to the cylinder block 1, for example, by welding or providing a corresponding mounting groove on the cylinder block 1, and one end of the first member 31 is mounted in the mounting groove in an interference fit manner.

The first member 31 and the second member 32 may be, for example, plate-shaped, and the first through-hole 311 or the second through-hole 321 may be formed by a hollow-out method. The plate-shaped structure can be a plane plate shape or a cambered surface plate shape.

According to an embodiment of the present invention, there is also provided a compressor including the above-described lubricating oil amount adjusting structure.

According to an embodiment of the invention, a refrigerator is also provided, which comprises the 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 limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. The lubricating oil quantity adjusting structure is characterized by comprising an air cylinder seat (1) and a crankshaft (2), wherein the air cylinder seat (1) is provided with an air cylinder part, the crankshaft (2) is rotatably connected with the air cylinder seat (1), a groove (11) is formed in the air cylinder part, an oil quantity adjusting assembly (3) is further arranged between the groove (11) and the crankshaft (2), and the oil quantity adjusting assembly (3) can adjust the lubricating oil quantity thrown out by the crankshaft (2) and thrown into the groove (11).

2. The adjusting structure according to claim 1, wherein the oil amount adjusting assembly (3) comprises a first member (31) and a second member (32), the first member (31) has a plurality of first through holes (311), the second member (32) has a second through hole (321), and relative movement between the second member (32) and the first member (31) can be generated to adjust the flow area formed by overlapping the first through hole (311) and the second through hole (321).

3. The adjustment structure according to claim 2, wherein the first member (31) has two guide walls (312) extending toward one side of the second member (32), the two guide walls (312) being located at opposite ends of the first member (31), the guide walls (312) being formed with guide grooves (313), and the second member (32) being inserted into the guide grooves (313).

4. An adjustment arrangement according to claim 3, characterized in that the end of the second part (32) cooperating with the guide groove (313) is of spherical configuration.

5. The adjusting structure of claim 2, wherein an elastic resetting piece (33) is further arranged between the first component (31) and the second component (32), and the telescopic direction of the elastic resetting piece (33) is in the telescopic direction of the first component (31) and the second component (32).

6. Adjustment structure as claimed in claim 5, characterized in that said elastic return member (33) comprises a spring.

7. Adjustment arrangement according to claim 2, characterized in that the first part (31) is fixedly connected with the cylinder block (1).

8. The adjustment arrangement according to claim 7, characterized in that the second part (32) is on the side of the first part (31) facing the crankshaft (2).

9. A compressor including a lubricating oil amount adjusting structure, characterized in that the lubricating oil amount adjusting structure is the lubricating oil amount adjusting structure of any one of claims 1 to 8.

10. A refrigerator comprising a compressor, characterized in that the compressor is the compressor of claim 9.