CN217354751U

CN217354751U - Pump body subassembly, compressor and air conditioner

Info

Publication number: CN217354751U
Application number: CN202220744331.6U
Authority: CN
Inventors: 刘宇琪; 黄纯浚
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-04-01
Filing date: 2022-04-01
Publication date: 2022-09-02
Anticipated expiration: 2032-04-01

Abstract

The utility model provides a pump body subassembly, compressor and air conditioner, pump body subassembly includes: the partition plate is attached to the axial end of the roller, a deformation abdicating cavity is arranged in the partition plate, after the roller is deformed by heating, the part attached to the axial end of the roller on the partition plate can be forced to deform into the deformation abdicating cavity, the reciprocating motion stress change of the roller enables the part of the roller in contact with the partition plate to generate proper deformation, the abrasion is reduced, a thicker oil film is formed to prevent leakage, the arrangement of the deformation abdicating cavity enables the local heat generated between the roller in the cylinder and the part in contact with the roller to be partially isolated through the partition plate, the axial deformation generated by the heat load at the end surface of the roller is effectively reduced, and the abrasion between the roller and the end surfaces of the upper flange and the lower flange is reduced; the axial design clearance between the roller and the contact part is further reduced, the leakage amount in the pump body assembly is reduced, and the energy efficiency of the compressor is improved.

Description

Pump body subassembly, compressor and air conditioner

Technical Field

The utility model belongs to the technical field of the compressor, concretely relates to pump body subassembly, compressor and air conditioner.

Background

With the improvement of living standard of people, the requirement of people on the comfort of the environment is higher and higher, and the air conditioner is almost a necessary product for every family. The rotary compressor is characterized by low manufacturing cost and low price, so that most of the compressors used in the field of household air conditioners are rotary compressors. With the improvement of environmental awareness and the support of national policies, more efficient rotary compressors have become a popular choice for various air conditioner manufacturers, and various air conditioner manufacturers are also working on developing more efficient rotary compressors.

The baffle is one of the core components of the pump body of the compressor, in the operation process of the double-cylinder or multi-cylinder compressor, the roller generates relative motion friction with the end surfaces of the upper flange and the lower flange (or with the end surfaces of the baffle) and the head of the slip sheet at the same time, so that the temperature of the roller is increased, large thermal deformation is generated in the axial direction, further, the axial clearance between the roller and the matching end surfaces of the two sides (the end surfaces of the upper flange and the lower flange or the end surfaces of the baffle) is reduced, and finally, the roller is seriously abraded with the end surfaces of the upper flange and the lower flange or with the end surfaces of the baffle, so that the reliability of the compressor is reduced. In order to reduce abrasion, a method of enlarging a gap to strengthen lubrication is adopted in the industry to solve the problems of poor sealing effect, large refrigerant leakage and the like, and the influence on the performance of the compressor is large.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model discloses solve the roller temperature and rise, produce great heat altered shape in the axial, and then make roller and both sides engaged end face (upper and lower flange terminal surface or baffle terminal surface) axial clearance reduce to finally lead to roller and flange terminal surface or produce with the baffle terminal surface and take place serious wearing and tearing, lead to the technical problem that the compressor reliability reduces, thereby provide a pump body subassembly, compressor and air conditioner.

In order to solve the above problem, the utility model provides a pump body subassembly, include: baffle and roller, the baffle laminating sets up at the axial tip of roller, has the deformation chamber of stepping down in the baffle, and the deformation chamber of stepping down is in the baffle and the regional of axial tip laminating, and after the roller thermal deformation, the part of laminating with the axial tip of roller on the baffle can be forced to warp the intracavity deformation of stepping down.

In some embodiments, the partition plate includes two end partition plates, the end partition plates have first annular grooves which are opened along the axial direction, and the openings of the first annular grooves respectively formed on the two end partition plates are relatively buckled to form the deformation yielding cavity in the partition plate.

In some embodiments, the deck further comprises a middle deck sandwiched between the two end decks.

In some embodiments, the end partition plates are provided with positioning pins, the middle partition plate is provided with positioning holes matched with the positioning pins, and the positioning pins and the positioning holes can enable the two end partition plates to be matched with the middle partition plate in a positioning mode.

In some embodiments, the end partition is further provided with a second annular groove arranged around the positioning pin; and/or the diameter of the positioning pin is D, the length of the positioning pin is H, and the numerical range of D/H is as follows: D/H is more than or equal to 0.5 and less than or equal to 0.8.

In some embodiments, the locating pin is sleeved with an elastic component, and the elastic component is partially positioned in the second annular groove.

In some embodiments, the number of the positioning pins and the second annular grooves is multiple and corresponds to one another.

In some embodiments, the outer diameter of the first annular groove is no less than the inner diameter of the cylinder.

In some embodiments, the thickness T of the end baffle at the bottom of the first annular groove ₁ ，3mm≥T ₁ ≥0.5mm。

In some embodiments, at least the region of the end baffle in abutting contact with the roller is provided with a wear resistant coating.

In some embodiments, the wear-resistant coating is a ceramic coating, and the proportion of each component in the ceramic coating is as follows: 70 to 80 percent of zirconia and 10 to 12 percent of titanium boride; and/or 4% -5% of alumina.

In some embodiments, the zirconia has a particle size of 50 to 60nm and the titanium boride has a particle size of 1 to 2 μm; and/or the granularity of the alumina is 70-80 nm.

In some embodiments, the abradable coating is a self-lubricating abradable composite coating comprising a lubricating phase layer and an abradable phase layer, the abradable phase layer being applied to the surface of the lubricating phase layer.

The utility model also provides a compressor, including foretell pump body subassembly.

The utility model also provides an air conditioner, including foretell compressor.

The utility model provides a pump body subassembly has following beneficial effect:

the utility model provides a pump body subassembly, include: the partition plate is attached to the axial end of the roller, the partition plate is internally provided with a deformation abdicating cavity, the deformation abdicating cavity is positioned in an area where the partition plate is attached to the axial end, after the roller is heated and deformed, the part, attached to the axial end of the roller, on the partition plate can be forced to deform into the deformation abdicating cavity, the reciprocating motion stress change of the roller enables the part, in contact with the partition plate, of the roller to generate moderate deformation, the abrasion is reduced, a thicker oil film is formed to prevent leakage, and due to the arrangement of the deformation abdicating cavity, local heat generated between the part, in contact with the roller, of the roller moving in the cylinder can be partially isolated through the partition plate, so that the axial deformation generated due to heat load at the end face of the roller is effectively reduced, and meanwhile, the abrasion between the roller and the upper flange end face and the lower flange end face is reduced; the axial design clearance between the roller and the contact part can be further reduced, the leakage amount in the pump body assembly is reduced, and the energy efficiency of the compressor is improved.

Additionally, the utility model provides a compressor and air conditioner is based on foretell pump body subassembly is made, and foretell pump body subassembly is referred to pump body subassembly, compressor and air conditioner's beneficial effect.

Drawings

Fig. 1 is a schematic structural view of a partition plate in a pump body assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of the end separator of FIG. 1;

FIG. 3 is a schematic structural view of the intermediate partition plate of FIG. 1;

FIG. 4 is a schematic view of another baffle in the pump body assembly according to an embodiment of the present invention;

fig. 5 is a schematic view of the end spacer of fig. 4.

The reference numbers are given as:

11. an end partition; 12. a first annular groove; 13. a middle partition plate; 14. a second annular groove; 15. positioning pins; 16. positioning holes; 17. an elastic member.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following description will be given with reference to the embodiments of the present invention and the accompanying drawings, in which the technical solution of the present invention is clearly and completely described. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5 in combination, the present invention provides a pump body assembly, comprising: baffle and roller, the baffle laminating sets up at the axial tip of roller, has the deformation chamber of stepping down in the baffle, and the deformation chamber of stepping down is in the baffle and the region of axial tip laminating, and after the roller is heated and is out of shape, the part of the axial tip laminating with the roller on the baffle can be forced to warp the intracavity deformation of stepping down.

The pump body assembly is provided with at least two cylinders, the partition plate is located between the two cylinders, rollers are arranged in the two cylinders, and the axial end portions of the two rollers are attached to the two sides of the partition plate.

The partition plate is attached to the axial end of the roller, the partition plate is internally provided with a deformation abdicating cavity, the deformation abdicating cavity is positioned in an area where the partition plate is attached to the axial end, after the roller is heated and deformed, the part attached to the axial end of the roller on the partition plate can be forced to deform into the deformation abdicating cavity, the reciprocating motion stress change of the roller enables the part of the roller contacted with the partition plate to generate proper deformation, the abrasion is reduced, a thicker oil film is formed to prevent leakage, and due to the arrangement of the deformation abdicating cavity, local heat generated between the part of the roller moving in the cylinder and the part contacted with the roller can be partially isolated through the partition plate, the axial deformation generated by the thermal load at the end surface of the roller is effectively reduced, and meanwhile, the abrasion between the roller and the end surfaces of the upper flange and the lower flange is reduced; the axial design clearance between the roller and the contact part can be further reduced, the leakage amount in the pump body assembly is reduced, and the energy efficiency of the compressor is improved.

In some embodiments, the partition plate includes two end partition plates 11, the end partition plates 11 have first annular grooves 12 opened in the axial direction, and the openings of the first annular grooves 12 respectively provided in the two end partition plates 11 are relatively buckled to form deformation yielding cavities in the partition plates.

The baffle of this embodiment includes two tip baffles 11, and tip baffle 11 has the first ring channel 12 of axial open-ended, and the relative lock in order to form the deformation chamber of stepping down in the baffle of the opening of the first ring channel 12 that two tip baffles 11 have respectively designs into the same structure with two tip baffles 11, and the batch processing of being convenient for has improved generation efficiency, has reduced the processing cost.

In some embodiments, the partition further comprises a middle partition 13, the middle partition 13 being sandwiched between the two end partitions 11.

Since the end partition 11 is provided with the first annular groove 12 to improve the flexibility of the partition, but reduce the rigidity of the partition at the same time, the present embodiment supports the two end partitions 11 by clamping the middle partition 13 between the two end partitions 11, thereby improving the overall rigidity of the partition.

In some embodiments, the end partition 11 is provided with a positioning pin 15, the middle partition 13 is provided with a positioning hole 16 matched with the positioning pin 15, and the positioning pin 15 and the positioning hole 16 can enable the two end partitions 11 to be matched with the middle partition 13 in a positioning mode.

In the embodiment, the positioning pins 15 are arranged on the end partition plates 11, the positioning holes 16 matched with the positioning pins 15 are arranged on the middle partition plate 13, and the positioning pins 15 and the positioning holes 16 matched with the positioning pins 15 are used for realizing accurate positioning and installation of the middle partition plate 13 and the two end partition plates 11, so that the assembly and matching precision between the middle partition plate 13 and the two end partition plates 11 is improved.

In some embodiments, the end partition 11 also has a second annular groove 14 disposed around the locating pin 15; and/or the diameter of the positioning pin 15 is D, the length of the positioning pin 15 is H, and the value range of D/H is as follows: D/H is more than or equal to 0.5 and less than or equal to 0.8.

When the end partition plate 11 of the embodiment is extruded by the axial end part of the roller, the end partition plate 11 can realize deflection deformation due to the slender shape of the positioning pin 15, so that the end partition plate 11 has a certain radial moving space, and the deflection deformation of the positioning pin 15 is increased due to the arrangement of the second annular groove 14, so that the deformation amplitude of the end partition plate 11 is larger, the abrasion degree between the partition plate and the roller contacted with the partition plate is favorably reduced, the flexibility is improved, the axial design gap can be designed to be smaller, and the abrasion between the end surface of the partition plate and the contacted part is effectively reduced; the provision of the second annular groove 14 also improves the elastic deformability of the portion of the end partition 11 located radially outside the first annular groove 12.

In some embodiments, the positioning pin 15 is sleeved with an elastic member 17, and the elastic member 17 is partially located in the second annular groove 14.

This embodiment is through the cover being equipped with elastomeric element 17 on locating pin 15, can realize that end partition plate 11 can float be connected between the part with it contact, and the contact that can float is out of shape with the amount of deflection of locating pin 15 and is overlapped, more is favorable to reducing the degree of wear between the roller of baffle and its contact, and the flexibility obtains promoting and then can be with axial design clearance design littleer, and effectively reduces the terminal surface of baffle and the wearing and tearing between the contact part.

In some embodiments, the number of the positioning pins 15 and the second annular grooves 14 is plural and corresponds to one another.

The quantity of the second ring channel 14 of this embodiment is a plurality of, and second ring channel 14 has improved the elastic deformation ability of the part that tip baffle 11 is located the radial outer end of first ring channel 12, and the more elastic deformation ability that quantity set up is stronger, more is favorable to reducing the degree of wear between the roller of baffle and its contact, and the flexibility obtains promoting and then can be with axial design clearance design littleer, and effectively reduces the wearing and tearing between the terminal surface of baffle and the contact part.

Preferably, the positioning pins 15 are uniformly arranged along the circumferential direction of the partition board at intervals, and the number of the positioning holes 16 on the middle partition board 13 is not less than that of the positioning pins 15.

In some embodiments, the outer diameter of the first annular groove 12 is not less than the inner diameter of the cylinder.

The outer diameter of the first annular groove 12 of the embodiment is not smaller than the inner diameter of the cylinder, so that the rolling position of the roller in the cylinder is fully covered into the deformation yielding cavity of the partition plate, the roller is enabled to generate moderate deformation at the contact part with the partition plate, and the axial deformation generated by the heat load at the axial end face of the roller is better reduced.

In some embodiments, the thickness T of the end baffle 11 at the bottom of the first annular groove 12 is ₁ ，3mm≥T ₁ ≥0.5mm。

The thickness T of the end partition 11 at the bottom of the first annular groove 12 in this embodiment is ₁ ，3mm≥T ₁ Not less than 0.5mm to ensure that the end part baffle 11 can elastically deform and has enough strength.

The thickness dimension of the end part of the partition board 11 at the bottom of the first annular groove 12 is specially limited, and the main functions are two, namely, ensuring that the bottom of the first annular groove 12 is flexible, ensuring that the deformation is large, and preventing the unfavorable phenomena that the bearing capacity of the partition board is reduced and the like due to the fact that the thickness of the bottom of the first annular groove 12 is too small. The bottom wall and the side wall of the first annular groove 12 should be in smooth transition connection as much as possible, so that stress concentration between the bottom wall and the side wall can be prevented, the occurrence of an alternating fracture phenomenon at the intersection of the bottom wall and the side wall is prevented, and the service life of the partition plate is prolonged.

In some embodiments, the end baffles 11 are provided with a wear resistant coating at least in the region where they are in abutting contact with the roller.

The end partition 11 of this embodiment is provided with a wear-resistant coating at least in the region in abutting contact with the roller to improve the wear resistance of the partition.

In addition, the wear-resistant coating can be formed by carrying out phosphating and other treatments on at least the region, which is in contact with the roller in a bonding manner, of the end partition plate 11, and can also be formed by correspondingly plating a wear-resistant material layer, and certainly, the whole end partition plate 11 can also be made of a wear-resistant material.

In some embodiments, the wear-resistant coating is a ceramic coating, and the proportion of each component in the ceramic coating is as follows: 70 to 80 percent of zirconia and 10 to 12 percent of titanium boride; and/or 4-5% of alumina to improve the wear resistance of the separator.

In some embodiments, the zirconia has a particle size of 50 to 60nm and the titanium boride has a particle size of 1 to 2 μm; and/or the granularity of the aluminum oxide is 70-80 nm so as to improve the wear resistance of the partition board.

In some embodiments, the wear-resistant coating is a self-lubricating wear-resistant composite coating, the self-lubricating wear-resistant composite coating comprises a lubricating phase layer and a wear-resistant phase layer, the lubricating phase layer can be of a diamond-like graphite layer type, the wear-resistant phase layer can be of a nitride layer type, and the wear-resistant phase layer is coated on the surface of the lubricating phase layer to improve the wear resistance of the partition board.

The utility model also provides a compressor, for rotary compressor, rotary compressor includes foretell pump body subassembly.

It is easily understood by those skilled in the art that the above-described modes can be freely combined and superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the 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, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A pump body assembly, comprising: baffle and roller, the baffle laminating sets up the axial tip of roller, it yields the chamber to have the deformation in the baffle, it yields the chamber to warp to be in the baffle with in the region of axial tip laminating the roller is the thermal deformation back, on the baffle with the part of the axial tip laminating of roller can be forced to warp and yield the intracavity and warp.

2. The pump body assembly according to claim 1, characterized in that said partition comprises two end partitions (11), said end partitions (11) having a first annular groove (12) open in the axial direction, the openings of said first annular grooves (12) respectively provided by said two end partitions (11) being relatively snap-fitted to form said deformation avoiding cavity in said partitions.

3. The pump body assembly according to claim 2, characterized in that said partition further comprises an intermediate partition (13), said intermediate partition (13) being clamped between the two end partitions (11).

4. The pump body assembly according to claim 3, characterized in that the end partitions (11) are provided with positioning pins (15) and the intermediate partition (13) is provided with positioning holes (16) cooperating with the positioning pins (15), the positioning pins (15) and the positioning holes (16) enabling the positioning engagement of the two end partitions (11) with the intermediate partition (13).

5. The pump body assembly according to claim 4, characterized in that said end partition (11) is also provided with a second annular groove (14) arranged around said positioning pin (15); and/or the diameter of the positioning pin (15) is D, the length of the positioning pin (15) is H, and the numerical range of D/H is as follows: D/H is more than or equal to 0.5 and less than or equal to 0.8.

6. Pump body assembly according to claim 5, characterized in that said positioning pin (15) is sheathed with an elastic member (17), said elastic member (17) being partially located in said second annular groove (14).

7. The pump block assembly according to claim 5, characterized in that the positioning pins (15) and the second annular grooves (14) are each in a plurality and in a one-to-one correspondence.

8. The pump body assembly according to claim 2, characterized in that the first annular groove (12) has an outer diameter not smaller than the inner diameter of the cylinder.

9. Pump body assembly according to claim 2, characterized in that the thickness T of the end partition (11) at the bottom of the first annular groove (12) ₁ ，3mm≥T ₁ ≥0.5mm。

10. Pump body assembly according to claim 2, characterized in that the end baffle (11) is provided with a wear-resistant coating at least in the region of its abutting contact with the roller.

11. The pump body assembly of claim 10, wherein the abradable coating is a self-lubricating abradable composite coating comprising a lubrication phase layer and an abradable phase layer, the abradable phase layer being coated on a surface of the lubrication phase layer.

12. A compressor, comprising a pump body assembly according to any one of claims 1 to 11.

13. An air conditioner characterized by comprising the compressor of claim 12.