Oil filtering and residue storing structure of compressor and compressor

Abstract

The oil filtering and residue storing structure comprises a crankshaft, a baffle and a bearing and further comprises a shaft shoulder gasket arranged on the baffle, a first through hole is formed in the shaft shoulder gasket, a first counter bore is formed in the position, corresponding to the first through hole, of the baffle, the hole diameter of the first through hole is smaller than that of the first counter bore, and the first counter bore is a blind hole; the first through hole and the first counter bore are matched with each other to collect dross pushed in under the action of centrifugal force; a second through hole is further formed in the shaft shoulder gasket, a second counter bore is formed in the position, corresponding to the second through hole, of the baffle, the aperture of the second through hole is smaller than that of the second counter bore, the second counter bore is a blind hole, and the second through hole and the second counter bore are matched with each other to be used for collecting dross pushed in under the action of centrifugal force; by additionally arranging the shaft shoulder gasket, the counter bore and the through hole structure, dregs in lubricating oil can be effectively deposited in the counter bore, the risk that moving parts are stuck is reduced, and the service life is prolonged; the structure is simple and reliable, and extra filter screens or high-cost lubricating oil is not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid machinery and refrigeration equipment, and in particular to an oil filtering and residue storing structure of a compressor and the compressor. Background Art

[0002] In reciprocating piston refrigeration compressors, the centrifugal force generated by the rotation of the crankshaft is usually used to drive the internal lubricating oil circulation to achieve lubrication and cooling of the moving parts. However, in the existing technology, metal debris, impurities and other debris in the lubricating oil can enter key moving parts such as bearings and pistons through the oil circuit, causing increased friction and even jamming. Although some compressors are equipped with slag discharge holes in the oil circuit, due to structural limitations, the slag discharge holes are too close to the oil suction port, and the debris is easily sucked into the oil circuit again and cannot be effectively discharged. After long-term operation, the debris is deposited at the bottom of the shell or repeatedly enters the moving parts, seriously affecting the reliability and service life of the compressor.

[0003] Common solutions currently include optimizing filters or improving lubricant cleanliness. However, filters can increase flow resistance, while high-cleanliness lubricants are expensive. Furthermore, while simply increasing the size of the slag removal holes can improve slag removal, it can lead to excessive lubricant leakage, compromising lubrication efficiency. Therefore, effectively separating and draining slag from oil circuits while maintaining lubrication performance has become a pressing technical challenge in this field. Summary of the Invention

[0004] In response to the above technical problems in the related art, the present invention proposes an oil filtering and residue storage structure for a compressor and a compressor, which can overcome the above deficiencies in the prior art.

[0005] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows: An oil filtering and residue storing structure for a compressor; The oil filtering and residue storage structure of the compressor includes a crankshaft, a baffle and a bearing, and also includes a shoulder gasket provided on the baffle; The shoulder gasket is provided with a second through hole, and the baffle is provided with a second countersunk hole at a position corresponding to the second through hole, and the second countersunk hole is a blind hole. The second through hole and the second countersunk hole cooperate with each other to collect the inflowing slag.

[0006] Furthermore, a first through hole is provided on the shoulder gasket, and a first countersunk hole is provided at a position of the baffle corresponding to the first through hole, and the first countersunk hole is a blind hole, and the first through hole and the first countersunk hole cooperate with each other to collect the inflowing slag.

[0007] Furthermore, the second through hole is arranged at a position corresponding to the oil drain groove on the crankshaft.

[0008] Furthermore, a radial oil groove connected to the second countersunk hole is formed on the baffle, and the radial oil groove is used to discharge excess oil.

[0009] Furthermore, the lowest position of the radial oil groove is higher than the bottom of the second countersunk hole, forming a height difference for separating oil and residue.

[0010] Furthermore, the first through hole and the first counterbore are eccentrically arranged, and the center distance between the first through hole and the first counterbore is 0.5~1 / 2(D1+D2).

[0011] Furthermore, the second through hole and the second countersunk hole are eccentrically arranged, and the center distance between the second through hole and the second countersunk hole is 0.5~1 / 2(D3+D4).

[0012] Furthermore, the cross-sectional shape of the first through hole and / or the first countersunk hole is circular, polygonal or irregular; and the first countersunk hole is a stepped hole or a stepped tapered hole with a closed bottom.

[0013] Furthermore, the cross-sectional shape of the second through hole and / or the second countersunk hole is circular, polygonal or irregular; and the second countersunk hole is a stepped hole or a stepped tapered hole with a closed bottom.

[0014] According to a second aspect of the present invention, there is provided a compressor; The compressor includes the above-mentioned oil filtering and residue storing structure.

[0015] The beneficial effects of the present invention are as follows: by optimizing and improving the design of the compressor deslagging structure, adding a shaft shoulder gasket on the baffle and cooperating with the countersunk hole structure, the residue in the lubricating oil can be effectively deposited in the countersunk hole and will not enter the moving pair. At the same time, the height difference design ensures that the oil circulates normally and the residue is intercepted, thereby significantly reducing the risk of moving parts getting stuck and extending the service life of the compressor. At the same time, the structure is simple and reliable, and there is no need to add additional filters or use high-cost lubricating oil, so it has good practicality and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is an exploded view of the overall structure of an oil filter and residue storage structure of a compressor according to an embodiment of the present invention; Figure 2 This is a partial exploded view from a first perspective of an oil filtering and residue storage structure of a compressor according to an embodiment of the present invention; Figure 3 is a partial exploded view from a second perspective of an oil filtering and residue storage structure of a compressor according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a first mating state of an oil filtering and residue storing structure of a compressor according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of a second mating state of an oil filtering and residue storing structure of a compressor according to an embodiment of the present invention; In the figure: 1, crankshaft; 2, baffle; 3, shoulder gasket; 4, radial oil groove; 5, bearing; 6, screw; D1, first through hole; D2, first countersunk hole; D3, second through hole; D4, second countersunk hole. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention are within the scope of protection of the present invention.

[0019] It should be understood that in the description of the embodiments of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the embodiments of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0020] like Figure 1-5 As shown, a compressor oil filter and residue storage structure according to an embodiment of the present invention includes a crankshaft 1, a baffle 2 and a bearing 5, and also includes a shoulder gasket 3 provided on the baffle 2; The shoulder gasket 3 is provided with a second through hole D3, and the baffle 2 is provided with a second countersunk hole D4 at a position corresponding to the second through hole D3, and the second countersunk hole D4 is a blind hole. The second through hole D3 and the second countersunk hole D4 cooperate with each other to collect the inflowing slag.

[0021] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, a first through hole D1 is provided on the shoulder gasket 3, and a first countersunk hole D2 is provided at a position of the baffle 2 corresponding to the first through hole D1, and the first countersunk hole D2 is a blind hole, and the first through hole D1 and the first countersunk hole D2 cooperate with each other to collect the inflowing residue.

[0022] According to an oil filtering and residue storage structure of a compressor according to an embodiment of the present invention, in a specific embodiment, the second through hole D3 is arranged at a position corresponding to the oil drain groove on the crankshaft 1 .

[0023] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, a radial oil groove 4 connected to the second countersunk hole D4 is provided on the baffle 2, and the radial oil groove 4 is used to discharge excess oil.

[0024] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, the lowest position of the radial oil groove 4 is higher than the bottom of the second countersunk hole D4, forming a height difference H for separating oil and residue.

[0025] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, the first through hole D1 and the first countersunk hole D2 are eccentrically arranged, and the center distance between the first through hole D1 and the first countersunk hole D2 is 0.5~1 / 2(D1+D2).

[0026] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, the second through hole D3 and the second countersunk hole D4 are eccentrically arranged, and the center distance between the second through hole D3 and the second countersunk hole D4 is 0.5~1 / 2(D3+D4).

[0027] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, the cross-sectional shape of the first through hole D1 and / or the first countersunk hole D2 is circular, polygonal or irregular; the first countersunk hole D2 is a stepped hole or a stepped tapered hole with a closed bottom.

[0028] According to an oil filtering and residue storage structure of a compressor described in an embodiment of the present invention, in a specific embodiment, the cross-sectional shape of the second through hole D3 and / or the second countersunk hole D4 is circular, polygonal or irregular; the second countersunk hole D4 is a stepped hole or a stepped tapered hole with a closed bottom.

[0029] In a second aspect, a compressor according to an embodiment of the present invention includes any one of the above-mentioned oil filtering and residue storage structures of the compressor.

[0030] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0031] In practical use, according to the compressor oil filter and residue storage structure of the present invention, a shoulder gasket 3 is added to the baffle plate 2. A through-hole type first through hole D1 is formed at the location of the shoulder gasket 3 corresponding to the residue accumulation, and a blind hole type first countersunk hole D2 is formed at the corresponding location of the baffle plate 2. The diameter of the first through hole D1 is smaller than the diameter of the first countersunk hole D2. The first countersunk hole D2 is used to store the residue pushed by centrifugal force. In a more preferred embodiment, a through-hole type second through hole D3 is opened in the above-mentioned shoulder gasket 2 corresponding to the crankshaft oil drain groove, and a blind hole type second countersunk hole D4 is opened in the corresponding position of the baffle 2; a radial oil groove 4 is opened radially in the second countersunk hole D4, and excess oil can be discharged from it; wherein the diameter of the second through hole D3 is smaller than the diameter of the second countersunk hole D4; the lowest position of the radial oil groove 4 must be higher than the bottom of the second countersunk hole D4, forming a height difference H. Due to the large specific gravity of the residue, it will sink to the lower part of the second countersunk hole D4, and the oil will flow out from the upper part, and most of the residue will sink into the second countersunk hole D4; this structure continues to work during the operation of the compressor, effectively preventing residue from entering the moving pair, and ensuring long-term stable operation of the equipment.

[0032] To sum up, with the help of the above-mentioned technical scheme of the present invention, by optimizing and improving the design of the compressor slag discharge structure, a shoulder gasket is added to the baffle and combined with a countersunk hole structure, so that the residue in the lubricating oil can be effectively deposited in the countersunk hole and will not enter the moving pair. At the same time, the height difference design ensures that the oil circulates normally and the residue is intercepted, thereby significantly reducing the risk of moving parts getting stuck and extending the service life of the compressor. At the same time, the structure is simple and reliable, and there is no need to add additional filters or use high-cost lubricating oil, so it has good practicality and economy.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A compressor oil filter and residue storage structure, characterized in that: It comprises a crankshaft (1), a baffle (2) and a bearing (5), and also comprises a shoulder washer (3) provided on the baffle (2); A second through hole (D3) is provided on the shoulder gasket (3), a second countersunk hole (D4) is provided on the baffle (2) at a position corresponding to the second through hole (D3), and the second countersunk hole (D4) is a blind hole. The second through hole (D3) and the second countersunk hole (D4) cooperate with each other to collect inflowing slag.

2. The oil filtering and residue storage structure of a compressor according to claim 1, characterized in that: The shoulder gasket (3) is provided with a first through hole (D1), the baffle (2) is provided with a first countersunk hole (D2) at a position corresponding to the first through hole (D1), and the first countersunk hole (D2) is a blind hole. The first through hole (D1) and the first countersunk hole (D2) cooperate with each other to collect inflowing slag.

3. The oil filtering and residue storage structure of a compressor according to claim 1, characterized in that: The second through hole (D3) is arranged at a position corresponding to the oil drain groove on the crankshaft (1).

4. The oil filtering and residue storage structure of a compressor according to claim 1, characterized in that: The baffle (2) is provided with a radial oil groove (4) connected to the second countersunk hole (D4), and the radial oil groove (4) is used to discharge excess oil.

5. The oil filtering and residue storage structure of a compressor according to claim 4, characterized in that: The lowest position of the radial oil groove (4) is higher than the bottom of the second countersunk hole (D4), forming a height difference (H) for separating oil and slag.

6. The oil filtering and residue storage structure of a compressor according to claim 2, characterized in that: The first through hole (D1) and the first countersunk hole (D2) are eccentrically arranged, and the center distance between the first through hole (D1) and the first countersunk hole (D2) is 0.5~1 / 2(D1+D2).

7. The oil filtering and residue storage structure of a compressor according to claim 1, characterized in that: The second through hole (D3) and the second countersunk hole (D4) are eccentrically arranged, and the center distance between the second through hole (D3) and the second countersunk hole (D4) is 0.5~1 / 2(D3+D4).

8. The oil filtering and residue storage structure of a compressor according to claim 2, characterized in that: The cross-sectional shape of the first through hole (D1) and / or the first countersunk hole (D2) is circular, polygonal or irregular; the first countersunk hole (D2) is a stepped hole or a stepped tapered hole with a closed bottom.

9. The oil filtering and residue storage structure of a compressor according to claim 1, characterized in that: The cross-sectional shape of the second through hole (D3) and / or the second countersunk hole (D4) is circular, polygonal or irregular; the second countersunk hole (D4) is a stepped hole or a stepped tapered hole with a closed bottom.

10. A compressor, characterized in that: The invention comprises an oil filtering and residue storing structure of a compressor as described in any one of claims 1 to 9.

Images