Support, compressor and refrigeration equipment

Abstract

The utility model provides a support, a compressor and refrigeration equipment. The support is used for the compressor, the compressor comprises a movable disc, the support is provided with a thrust surface and a matching surface which are oppositely arranged, the support is provided with a mounting hole, the mounting hole penetrates through the thrust surface and the matching surface, and the thrust surface is used for supporting the movable disc; the thrust surface is provided with a first oil groove, and the hole wall of the mounting hole is provided with a second oil groove which is connected with the first oil groove. When the compressor works, the crankshaft drives the movable disc to rotate, part of lubricating oil located between the mounting hole and the crankshaft can flow to the first oil groove through the second oil groove under the action of centrifugal force and exist on the thrust surface, the thrust surface is lubricated and cooled, the movable disc is lubricated and cooled, the abrasion loss of the thrust surface is reduced when the compressor runs, and the service life of the compressor is prolonged. Meanwhile, the abrasion loss of the movable disc can be reduced, the service life of the support can be prolonged while the use performance of the compressor is guaranteed, and the service life of the compressor can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of compressors, and more particularly, to a bracket, a compressor, and a refrigeration device. Background Art

[0002] A scroll compressor includes a bracket and a moving disk. The bracket has a thrust surface for supporting the moving disk, and the thrust surface bears the axial load during the operation of the scroll compressor. As the usage time of the scroll compressor increases, the wear amount of the thrust surface increases accordingly, affecting the performance and service life of the scroll compressor. Summary of the Utility Model

[0003] The present application aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, a first aspect of the present application provides a bracket.

[0005] A second aspect of the present application provides a compressor.

[0006] A third aspect of the present application provides a refrigeration device.

[0007] In view of this, a first aspect of the present application provides a bracket for a compressor. The compressor includes a moving disk. The bracket has a thrust surface and a mating surface disposed opposite to each other. The bracket is provided with a mounting hole that penetrates through the thrust surface and the mating surface. The thrust surface is used to support the moving disk; the thrust surface is provided with a first oil groove, and the hole wall of the mounting hole is provided with a second oil groove, and the second oil groove is connected to the first oil groove.

[0008] A bracket provided by the present application is for a compressor, and the compressor includes a crankshaft and a moving disk. The bracket has a thrust surface and a mating surface, the thrust surface and the mating surface are disposed opposite to each other, and the thrust surface is used to support the moving disk, thereby ensuring the stability of the operation of the compressor. The bracket is provided with a mounting hole that penetrates through the thrust surface and the mating surface, and the crankshaft is disposed through the mounting hole and connected to the moving disk.

[0009] It can be understood that the compressor further includes a stationary disk and a motor. The stationary disk and the moving disk enclose a compression chamber, and an exhaust port is provided on the stationary disk. The motor is connected to the crankshaft, and the crankshaft is connected to the moving disk. Thus, driven by the motor, the crankshaft drives the moving disk to rotate relative to the stationary disk to compress the gas in the compression chamber, and the compressed high-temperature and high-pressure gas is discharged through the exhaust port to complete the compression and exhaust process.

[0010] When the compressor operates, the moving disk rotates relative to the bracket, causing friction between the surfaces of the moving disk and the bracket in contact, that is, friction between the moving disk and the thrust surface, resulting in easy wear of the moving disk and the thrust surface, affecting the performance of the compressor and shortening the service life of the compressor.

[0011] Among them, a first oil groove is provided on the thrust surface, and a second oil groove is provided on the hole wall of the mounting hole. The first oil groove and the second oil groove are connected. In this way, when the compressor operates, the crankshaft drives the moving disk to rotate. A part of the lubricating oil located between the mounting hole and the crankshaft can flow to the first oil groove via the second oil groove under the action of centrifugal force and exist on the thrust surface, lubricating and cooling the thrust surface, lubricating and cooling the moving disk, reducing the wear amount of the thrust surface during the operation of the compressor, and at the same time being able to reduce the wear amount of the moving disk. While ensuring the service performance of the compressor, it is beneficial to extend the service life of the bracket and beneficial to extend the service life of the compressor, providing a structural support for ensuring the stability and reliability of the compressor operation.

[0012] It can be understood that a first oil groove is provided on the thrust surface, and a second oil groove is provided on the hole wall of the mounting hole.

[0013] That is to say, both the thrust surface and the mounting hole are provided with oil grooves for the flow of lubricating oil. The first oil groove and the second oil groove cooperate to define the flow path of the lubricating oil flowing from the gap between the mounting hole and the crankshaft to the thrust surface, so that the lubricating oil can be effectively guided to the thrust surface, providing a structural support for the effective filling of the lubricating oil between the moving disk and the thrust surface.

[0014] It can be understood that the second oil groove extends on the surface of the hole wall of the mounting hole.

[0015] According to the above-mentioned bracket of the present application, the following additional technical features may also be provided:

[0016] In some embodiments, optionally, the second oil groove is arranged at intervals from the mating surface.

[0017] In this embodiment, the mating structure of the second oil groove and the mating surface is further defined.

[0018] The second oil groove is arranged at intervals from the mating surface. That is to say, the second oil groove does not penetrate the mating surface. This setting can meet the use requirement that the lubricating oil can flow to the thrust surface via the second oil groove and the first oil groove, and at the same time can reduce the processing amount of the bracket, which is beneficial to improving the processing efficiency of the product and beneficial to reducing the production cost of the product.

[0019] In some embodiments, optionally, the second oil groove extends from the mating surface to the first oil groove.

[0020] In this embodiment, the mating structure of the second oil groove and the mating surface is further defined.

[0021] The second oil groove extends from the mating surface to the first oil groove. That is to say, the second oil groove penetrates the mating surface. This setting can effectively utilize the lubricating oil between the crankshaft and the mounting hole, realize the secondary utilization of the lubricating oil, and can effectively reduce the wear amount of the thrust surface.

[0022] In some embodiments, optionally, the mounting hole includes a first hole section and a second hole section connected to each other. The first hole section penetrates the thrust surface, and the second hole section penetrates the mating surface. The cross-sectional area of the flow passage of the second hole section is smaller than that of the first hole section. When the second oil groove is arranged at an interval from the mating surface, the end of the second oil groove facing away from the first oil groove is located at the connection between the first hole section and the second hole section, or at the second hole section.

[0023] In this embodiment, the mating structure of the mounting hole and the second oil groove is further defined.

[0024] The mounting hole includes a first hole section and a second hole section. The first end of the first hole section penetrates the thrust surface, the second end of the first hole section is connected to the first end of the second hole section, and the second end of the second hole section penetrates the mating surface.

[0025] The cross-sectional area of the flow passage of the second hole section is smaller than that of the first hole section, that is to say, the mounting hole is a counterbore. Wherein, the cross-section of the second hole section is taken along the direction perpendicular to the first hole section to the second hole section. In the cross-section, the area of the region enclosed by the inner contour line of the second hole section is the cross-sectional area of the flow passage of the second hole section. The cross-section of the first hole section is taken along the direction perpendicular to the first hole section to the second hole section. In the cross-section, the area of the region enclosed by the inner contour line of the first hole section is the cross-sectional area of the flow passage of the first hole section.

[0026] Optionally, when the second oil groove is arranged at an interval from the mating surface, the end of the second oil groove facing away from the first oil groove is located at the connection between the first hole section and the second hole section.

[0027] Optionally, when the second oil groove is arranged at an interval from the mating surface, the end of the second oil groove facing away from the first oil groove is located at the second hole section.

[0028] This setting enables the second oil groove to be in full contact with the lubricating oil, enabling the lubricating oil to fully fill the second oil groove, and providing a reliable structural support for the lubricating oil to effectively flow from the second oil groove to the first oil groove under the action of centrifugal force.

[0029] In some embodiments, optionally, the second oil groove extends in a circumferentially curved manner along the mounting hole, or the second oil groove extends obliquely.

[0030] In this embodiment, the structure of the second oil groove is further defined.

[0031] Specifically, the second oil groove extends in a circumferentially curved manner along the mounting hole.

[0032] Specifically, the second oil groove extends obliquely.

[0033] The extending direction of the second oil groove is consistent with the rotation direction of the crankshaft. When the compressor operates, the crankshaft drives the moving disk to move. The lubricating oil located between the crankshaft and the mounting hole overcomes its own weight under the action of the crankshaft and is effectively guided and conveyed along the second oil groove and the first oil groove to the thrust surface, so as to effectively fill the area between the moving disk and the thrust surface, and can effectively lubricate and cool the thrust surface, providing a reliable structural support for reducing the wear of the thrust surface.

[0034] The extending direction of the second oil groove is consistent with the rotation direction of the crankshaft. In this way, when the crankshaft rotates, the lubricating oil can more easily climb along the second oil groove to the first oil groove, which is beneficial to reducing the resistance to guide the flow of the lubricating oil, so that the lubricating oil can effectively flow to the thrust surface.

[0035] In some embodiments, optionally, the cross-sectional area of the first oil groove is less than or equal to the cross-sectional area of the second oil groove.

[0036] In this embodiment, the matching structure of the first oil groove and the second oil groove is further defined.

[0037] The first oil groove is sectioned along the direction perpendicular to its extending direction. In the section, the area of the region enclosed by the inner contour line of the first oil groove is the cross-sectional area of the first oil groove. The second oil groove is sectioned along the direction perpendicular to its extending direction. In the section, the area of the region enclosed by the inner contour line of the second oil groove is the cross-sectional area of the second oil groove.

[0038] By defining the relationship between the cross-sectional area of the first oil groove and the cross-sectional area of the second oil groove, such that the cross-sectional area of the first oil groove is less than or equal to the cross-sectional area of the second oil groove, in this way, under the action of the crankshaft and the moving disk, the lubricating oil can increase the climbing speed of the lubricating oil at the first oil groove, and can shorten the time for the lubricating oil to be conveyed to the thrust surface, providing a reliable structural support for the lubricating oil to be effectively pushed to the thrust surface of the bracket when the compressor operates.

[0039] In some embodiments, optionally, the cross-sectional area S1 of the first oil groove and the cross-sectional area S2 of the second oil groove satisfy: 0.28 ≤ S1 / S2 ≤ 0.8.

[0040] In this embodiment, the matching structure of the first oil groove and the second oil groove is further defined.

[0041] The flow cross-sectional area of the first oil groove is denoted as S1, and the flow cross-sectional area of the second oil groove is denoted as S2. Among them, the flow cross-sectional area S1 of the first oil groove and the flow cross-sectional area S2 of the second oil groove satisfy: 0.28≤S1 / S2≤0.8. That is, the relationship between the flow cross-sectional area of the first oil groove and the flow cross-sectional area of the second oil groove is limited. This setting enables the lubricating oil to increase the climbing speed of the lubricating oil in the first oil groove under the joint action of the crankshaft and the moving plate, and can shorten the time for the lubricating oil to be transported to the thrust surface, providing reliable structural support for the lubricating oil to be effectively pushed to the thrust surface of the bracket when the compressor is running.

[0042] In some embodiments, optionally, the first oil groove is spaced apart from an outer edge of the thrust surface.

[0043] In this embodiment, the positional relationship between the first oil groove and the thrust surface is further defined.

[0044] The first oil groove is arranged at an interval with the outer edge of the thrust surface, that is, the first oil groove is arranged at an interval with the outer edge of the thrust surface. The lubricating oil is prevented from flowing out of the outer edge of the thrust surface directly through the first oil groove, so that the lubricating oil can be effectively pushed to the thrust surface along the first oil groove, and the amount of the lubricating oil flowing out of the outer edge of the thrust surface can be reduced, so that the thrust surface can be effectively lubricated and cooled.

[0045] In some embodiments, optionally, the first oil groove extends at an angle; on the plane where the thrust surface is located, the angle θ1 between the groove wall contour line of the first oil groove and the preset straight line satisfies: 25°≤θ1≤55°; wherein the preset straight line passes through the center of the mounting hole and the endpoint of the first oil groove on the side facing away from the outer edge of the thrust surface.

[0046] In this embodiment, the structure of the first oil groove is further defined.

[0047] The first oil groove extends obliquely.

[0048] The inclination angle of the first oil groove is limited. Specifically, on the plane where the thrust surface is located, the angle between the groove wall contour line of the first oil groove and the preset straight line is recorded as θ1, where θ1 satisfies: 25°≤θ1≤55°. This setting can reduce the resistance of the lubricating oil when it transitions from the second oil groove to the first oil groove, increase the climbing speed of the lubricating oil in the first oil groove, shorten the time for the lubricating oil to be transported to the thrust surface, and provide reliable structural support for the lubricating oil to be effectively pushed to the thrust surface of the bracket when the compressor is running.

[0049] The preset straight line passes through the center of the mounting hole and the end point of the first oil groove on the side away from the outer edge of the thrust surface. It can also be understood that the preset straight line extends in the radial direction of the mounting hole.

[0050] In some embodiments, optionally, the first oil groove is an arc-shaped groove or an annular groove.

[0051] In this embodiment, the structure of the first oil groove is further defined.

[0052] The first oil groove is an arc-shaped groove or an annular groove.

[0053] This setting increases the mating area and mating angle between the first oil groove and the thrust surface, so that when the lubricating oil is pushed to the first oil groove, it can lubricate and cool the thrust surface in multiple directions and at multiple angles, increasing the mating area and mating angle between the lubricating oil and the thrust surface, so as to effectively reduce the wear amount at different positions of the thrust surface, providing effective and reliable structural support for improving the service performance of the compressor and extending the service life of the compressor.

[0054] Optionally, the first oil groove is an arc-shaped groove extending along the circumference of the mounting hole.

[0055] Optionally, the first oil groove is an annular groove extending along the circumference of the mounting hole.

[0056] In some embodiments, optionally, a fillet is provided at the connection between the first oil groove and the second oil groove.

[0057] In this embodiment, the mating structure between the first oil groove and the second oil groove is further defined.

[0058] A fillet is provided at the connection between the first oil groove and the second oil groove. This setting enables a smooth transition at the connection between the first oil groove and the second oil groove, which can reduce the resistance when the lubricating oil flows to the connection between the first oil groove and the second oil groove, enabling the lubricating oil to be effectively pushed along the second oil groove to the first oil groove, which is beneficial to increasing the climbing speed of the lubricating oil when it is pushed to the first oil groove.

[0059] At the same time, this structural setting can improve the structural strength of the bracket at the connection between the first oil groove and the second oil groove, reduce stress, and is beneficial to improving the service performance of the bracket.

[0060] In some embodiments, optionally, the number of the second oil grooves is multiple, the multiple second oil grooves are arranged at intervals along the circumference of the mounting hole, the number of the first oil grooves is at least one, and each first oil groove is connected to at least one second oil groove.

[0061] In this embodiment, the number and mating structure of the first oil groove and the second oil groove are further defined.

[0062] The number of the second oil grooves is multiple, and multiple means greater than or equal to 2.

[0063] The number of the first oil grooves is at least one.

[0064] A plurality of second oil grooves are arranged at intervals along the circumference of the mounting hole, and each first oil groove is connected to at least one second oil groove. That is, each first oil groove has at least one second oil groove matched therewith to supply lubricating oil thereto.

[0065] Optionally, when there are multiple first oil grooves, the multiple first oil grooves are arranged at intervals along the circumferential direction of the mounting hole.

[0066] Optionally, when there are multiple first oil grooves, the multiple first oil grooves are concentrated in the area where the thrust surface has a larger wear amount, and the multiple first oil grooves are arranged at intervals.

[0067] The second aspect of the present application proposes a compressor, comprising: a moving plate; a crankshaft; lubricating oil; and a bracket as in the first aspect, the crankshaft is passed through the mounting hole, the lubricating oil is located between the crankshaft and the mounting hole, the moving plate is connected to the crankshaft, and a portion of the moving plate is arranged opposite to the thrust surface.

[0068] The compressor provided in the present application includes a moving plate, a crankshaft, lubricating oil and the bracket in the first aspect. Since the compressor includes the bracket in the first aspect, it has all the beneficial effects of the above-mentioned bracket, which are not listed one by one here.

[0069] The compressor further includes a stator plate, specifically, the stator plate cooperates with the moving plate, and it can be understood that the stator plate and the moving plate enclose a compression chamber, and an exhaust port is provided on the stator plate. The compressor further includes a motor, the motor is connected to the crankshaft, and the crankshaft is connected to the moving plate, so that under the drive of the motor, the crankshaft drives the moving plate to rotate relative to the stator plate to compress the gas in the compression chamber, and the compressed high-temperature and high-pressure gas is discharged through the exhaust port, completing the compression and exhaust process.

[0070] The bracket is located on the side of the moving plate away from the static plate, and is specifically fixedly connected to the static plate. A thrust surface is provided on the side of the bracket facing the moving plate, and the bracket supports the moving plate through the thrust surface, thereby ensuring the stability of the compressor operation.

[0071] In some embodiments, optionally, the extension direction of the second oil groove is the same as the rotation direction of the crankshaft.

[0072] In this embodiment, the matching structure between the second oil groove and the crankshaft is further defined.

[0073] The extending direction of the second oil groove is the same as the rotation direction of the crankshaft.

[0074] When the compressor is working, the crankshaft rotates, and the lubricating oil between the crankshaft and the mounting hole overcomes its own weight under the action of the crankshaft and the moving plate and is effectively guided and transported to the thrust surface along the second oil groove and the first oil groove to effectively fill the gap between the moving plate and the thrust surface, which can effectively lubricate and cool the thrust surface, and provide reliable structural support for reducing the wear of the thrust surface.

[0075] The extending direction of the second oil groove is consistent with the rotation direction of the crankshaft. In this way, when the crankshaft rotates, the lubricating oil can more easily climb along the second oil groove to the first oil groove, which is beneficial to reducing the resistance when guiding the flow of the lubricating oil, so that the lubricating oil can effectively flow to the thrust surface.

[0076] In some embodiments, optionally, the gravitational acceleration of the lubricating oil is denoted as g, the rotational angular velocity of the crankshaft is denoted as ω, and the radius of the mounting hole is denoted as r; when the second oil groove extends in a curved manner, the included angle between the circumferential tangent of the end point on the side of the second oil groove away from the first oil groove and the horizontal plane is denoted as θ2; when the second oil groove extends obliquely, on the longitudinal section of the bracket, the included angle between the groove wall contour line of the second oil groove and the horizontal plane is denoted as θ2; wherein, θ2≥arctg(g / (r×ω 2 ))), the horizontal plane is perpendicular to the height direction of the compressor, and the longitudinal section of the bracket is perpendicular to the horizontal plane.

[0077] In this embodiment, the structure of the second oil groove is further defined.

[0078] The gravitational acceleration of the lubricating oil is denoted as g, the rotational angular velocity of the crankshaft is denoted as ω, and the radius of the mounting hole is denoted as r.

[0079] When the second oil groove extends in a curved manner, the included angle between the circumferential tangent of the end point on the side of the second oil groove away from the first oil groove and the horizontal plane is denoted as θ2. The extending direction of the second oil groove is the same as the rotation direction of the crankshaft.

[0080] When the second oil groove extends obliquely, on the longitudinal section of the bracket, the included angle between the groove wall contour line of the second oil groove and the horizontal plane is denoted as θ2. The extending direction of the second oil groove is the same as the rotation direction of the crankshaft.

[0081] g, ω, r and θ2 satisfy θ2≥arctg(g / (r×ω 2 ))), at a certain rotational speed of the lubricating oil, the axial component of the thrust of the mounting hole wall on the lubricating oil is greater than the self-weight of the lubricating oil, which can effectively increase the oil supply amount to the thrust surface, thereby effectively lubricating and cooling the thrust surface of the bracket, and reducing the risk of wear of the thrust surface.

[0082] A third aspect of the present application proposes a refrigeration device, including: a compressor as in the second aspect.

[0083] The refrigeration device provided by the present application, because it includes the compressor as in the second aspect, therefore has all the beneficial effects of the above compressor, and will not be described one by one here.

[0084] The additional aspects and advantages of the present application will become obvious in the following description part, or be learned through the practice of the present application. Description of the Drawings

[0085] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, where:

[0086] Figure 1 FIG. 4 shows a schematic structural view of a first perspective of a bracket according to a first embodiment of the present application;

[0087] Figure 2 FIG. 8 shows a partial structural view of a bracket according to a first embodiment of the present application;

[0088] Figure 3 FIG. 12 shows a schematic structural view of a second perspective of a bracket according to a first embodiment of the present application;

[0089] Figure 4 FIG. 16 shows a schematic structural view of a third perspective of a bracket according to a first embodiment of the present application;

[0090] Figure 5 is Figure 4 a partial enlarged view of part A of the bracket shown in FIG. 22;

[0091] Figure 6 FIG. 26 shows a schematic structural view of a bracket according to a second embodiment of the present application;

[0092] Figure 7 FIG. 30 shows a partial structural view of a compressor according to an embodiment of the present application.

[0093] Wherein, Figures 1 to 7 the corresponding relationship between the reference numerals and the component names in FIGS. 35 to 37 is as follows:

[0094] 10 bracket, 100 thrust surface, 200 mating surface, 300 mounting hole, 310 first hole section, 320 second hole section, 400 first oil groove, 500 second oil groove, 600 preset straight line, 700 chamfered corner, 810 horizontal plane, 820 circumferential tangent, 90 compressor, 900 moving disk, 1000 crankshaft, 1100 lubricating oil, 1200 static disk, 1210 exhaust port, 1300 main housing, 1400 suction pipe, 1500 main balance weight, 1600 motor stator, 1700 motor rotor, 1800 lower support ring, 1900 mounting base plate, 2000 upper housing, 2100 cross slip ring, 2200 throttle member, 2300 exhaust pipe, 2400 auxiliary frame, 2500 lower housing. Detailed Embodiments

[0095] In order to more clearly understand the above objects, features and advantages of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0096] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application may be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0097] Reference is made below Figures 1 to 7 A bracket 10, a compressor 90, and a refrigeration device according to some embodiments of the present application.

[0098] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6 As shown, a bracket 10 according to some embodiments of the present application is for a compressor 90. The compressor 90 includes a moving disk 900. The bracket 10 has a thrust surface 100 and a mating surface 200 that are oppositely arranged.

[0099] The bracket 10 is provided with a mounting hole 300.

[0100] The mounting hole 300 penetrates through the thrust surface 100 and the mating surface 200.

[0101] The thrust surface 100 is used to support the moving disk 900.

[0102] The thrust surface 100 is provided with a first oil groove 400.

[0103] The hole wall of the mounting hole 300 is provided with a second oil groove 500.

[0104] The second oil groove 500 is connected to the first oil groove 400.

[0105] A bracket 10 provided by the present application is for a compressor 90. The compressor 90 includes a crankshaft 1000 and a moving disk 900. The bracket 10 has a thrust surface 100 and a mating surface 200 that are oppositely arranged. The thrust surface 100 is used to support the moving disk 900, thereby ensuring the stability of the operation of the compressor 90. The bracket 10 is provided with a mounting hole 300 that penetrates through the thrust surface 100 and the mating surface 200. The crankshaft 1000 is inserted through the mounting hole 300 and connected to the moving disk 900.

[0106] It can be understood that the compressor 90 further includes a stationary disk 1200 and a motor. The stationary disk 1200 and the moving disk 900 enclose a compression chamber. An exhaust port 1210 is provided on the stationary disk 1200. The motor is connected to the crankshaft 1000, and the crankshaft 1000 is connected to the moving disk 900. Thus, driven by the motor, the crankshaft 1000 drives the moving disk 900 to rotate relative to the stationary disk 1200 to compress the gas in the compression chamber. The compressed high-temperature and high-pressure gas is discharged through the exhaust port 1210 to complete the processes of compression and exhaust.

[0107] When the compressor 90 operates, the moving disk 900 rotates relative to the bracket 10, causing friction between the surfaces of the moving disk 900 in contact with the bracket 10, that is, friction between the moving disk 900 and the thrust surface 100. As a result, the moving disk 900 and the thrust surface 100 are prone to wear, which affects the performance of the compressor 90 and shortens the service life of the compressor 90.

[0108] Among them, the thrust surface 100 is provided with a first oil groove 400, and the hole wall of the mounting hole 300 is provided with a second oil groove 500. The first oil groove 400 and the second oil groove 500 are connected. In this way, when the compressor 90 works, the crankshaft 1000 drives the moving disk 900 to rotate. A part of the lubricating oil 1100 located between the mounting hole 300 and the crankshaft 1000 can flow through the second oil groove 500 to the first oil groove 400 under the action of centrifugal force and accumulate on the thrust surface 100, lubricating and cooling the thrust surface 100, lubricating and cooling the moving disk 900, reducing the wear amount of the thrust surface 100 when the compressor 90 operates, and at the same time being able to reduce the wear amount of the moving disk 900. While ensuring the performance of the compressor 90, it is beneficial to extend the service life of the bracket 10 and is beneficial to extend the service life of the compressor 90, providing a structural support for ensuring the stability and reliability of the operation of the compressor 90.

[0109] It can be understood that the thrust surface 100 is provided with a first oil groove 400, and the hole wall of the mounting hole 300 is provided with a second oil groove 500, that is, both the thrust surface 100 and the mounting hole 300 are provided with oil grooves for the lubricating oil 1100 to flow. The first oil groove 400 and the second oil groove 500 cooperate to define the flow path of the lubricating oil 1100 flowing from the gap between the mounting hole 300 and the crankshaft 1000 to the thrust surface 100, so that the lubricating oil 1100 can be effectively guided to the thrust surface 100, providing a structural support for the effective filling of the lubricating oil 1100 between the moving disk 900 and the thrust surface 100.

[0110] In some embodiments, optionally, the second oil groove 500 is arranged at intervals from the mating surface 200.

[0111] In this embodiment, the mating structure of the second oil groove 500 and the mating surface 200 is further defined.

[0112] The second oil groove 500 is arranged at intervals from the mating surface 200. That is, the second oil groove 500 does not penetrate the mating surface 200. This setting can meet the use requirement that the lubricating oil 1100 can flow to the thrust surface 100 through the second oil groove 500 and the first oil groove 400, and at the same time can reduce the processing amount of the bracket 10, which is beneficial to improving the processing efficiency of the product and is beneficial to reducing the production cost of the product.

[0113] In some embodiments, optionally, the second oil groove 500 extends from the mating surface 200 to the first oil groove 400.

[0114] In this embodiment, the mating structure between the second oil groove 500 and the mating surface 200 is further defined.

[0115] The second oil groove 500 extends from the mating surface 200 to the first oil groove 400. That is to say, the second oil groove 500 penetrates the mating surface 200. This setting can effectively utilize the lubricating oil 1100 between the crankshaft 1000 and the mounting hole 300, realize the secondary utilization of the lubricating oil 1100, and can effectively reduce the wear amount of the thrust surface 100.

[0116] In some embodiments, optionally, as Figure 2 shown, the mounting hole 300 includes a connected first hole section 310 and a second hole section 320.

[0117] The first hole section 310 penetrates the thrust surface 100.

[0118] The second hole section 320 penetrates the mating surface 200.

[0119] The cross-sectional area of the second hole section 320 is smaller than the cross-sectional area of the first hole section 310.

[0120] When the second oil groove 500 is arranged at an interval from the mating surface 200, the end of the second oil groove 500 facing away from the first oil groove 400 is located at the connection between the first hole section 310 and the second hole section 320, or at the second hole section 320.

[0121] In this embodiment, the mating structure between the mounting hole 300 and the second oil groove 500 is further defined.

[0122] The mounting hole 300 includes a first hole section 310 and a second hole section 320. The first end of the first hole section 310 penetrates the thrust surface 100, the second end of the first hole section 310 is connected to the first end of the second hole section 320, and the second end of the second hole section 320 penetrates the mating surface 200.

[0123] The cross-sectional area of the second hole section 320 is smaller than the cross-sectional area of the first hole section 310, that is to say, the mounting hole 300 is a counterbore. Wherein, the second hole section 320 is sectioned along a direction perpendicular to the first hole section 310 to the second hole section 320. In the section, the area of the region enclosed by the inner contour line of the second hole section 320 is the cross-sectional area of the second hole section 320. The first hole section 310 is sectioned along a direction perpendicular to the first hole section 310 to the second hole section 320. In the section, the area of the region enclosed by the inner contour line of the first hole section 310 is the cross-sectional area of the first hole section 310.

[0124] Optionally, when the second oil groove 500 is arranged at an interval from the mating surface 200, one end of the second oil groove 500 facing away from the first oil groove 400 is located at the connection of the first hole section 310 and the second hole section 320.

[0125] Optionally, when the second oil groove 500 is arranged at an interval from the mating surface 200, one end of the second oil groove 500 facing away from the first oil groove 400 is located at the second hole section 320.

[0126] This setting enables the second oil groove 500 to be in full contact with the lubricating oil 1100, allowing the lubricating oil 1100 to fully fill the second oil groove 500, providing a reliable structural support for the effective flow of the lubricating oil 1100 from the second oil groove 500 to the first oil groove 400 under the action of centrifugal force.

[0127] In some other embodiments, when the second oil groove 500 is arranged at an interval from the mating surface 200, one end of the second oil groove 500 facing away from the first oil groove 400 is located at the first hole section 310.

[0128] In some embodiments, optionally, as Figure 6 shown, the second oil groove 500 extends in a circumferential bending manner along the mounting hole 300.

[0129] In some embodiments, optionally, as Figure 1 shown, the second oil groove 500 extends obliquely.

[0130] In this embodiment, the structure of the second oil groove 500 is further defined.

[0131] Specifically, the second oil groove 500 extends in a circumferential bending manner along the mounting hole 300.

[0132] Specifically, the second oil groove 500 extends obliquely.

[0133] The extending direction of the second oil groove 500 is consistent with the rotation direction of the crankshaft 1000. When the compressor 90 operates, the crankshaft 1000 drives the moving disc 900 to move, and the lubricating oil 1100 located between the crankshaft 1000 and the mounting hole 300 is effectively guided and conveyed along the second oil groove 500 and the first oil groove 400 under the action of the crankshaft 1000 to overcome its own weight, so as to effectively fill the area between the moving disc 900 and the thrust surface 100, and can effectively lubricate and cool the thrust surface 100, providing a reliable structural support for reducing the wear of the thrust surface 100.

[0134] The extending direction of the second oil groove 500 is consistent with the rotation direction of the crankshaft 1000. In this way, when the crankshaft 1000 rotates, the lubricating oil 1100 can more easily climb along the second oil groove to the first oil groove 400, which is beneficial to reducing the resistance to guide the flow of the lubricating oil 1100, so that the lubricating oil 1100 can effectively flow to the thrust surface 100.

[0135] In some embodiments, optionally, the cross-sectional area of the first oil groove 400 is less than or equal to the cross-sectional area of the second oil groove 500.

[0136] In this embodiment, the mating structure of the first oil groove 400 and the second oil groove 500 is further defined.

[0137] The first oil groove 400 is sectioned along a direction perpendicular to its extending direction. In the section, the area of the region enclosed by the inner contour line of the first oil groove 400 is the cross-sectional area of the first oil groove 400. The second oil groove 500 is sectioned along a direction perpendicular to its extending direction. In the section, the area of the region enclosed by the inner contour line of the second oil groove 500 is the cross-sectional area of the second oil groove 500.

[0138] By defining the relationship between the cross-sectional area of the first oil groove 400 and the cross-sectional area of the second oil groove 500, such that the cross-sectional area of the first oil groove 400 is less than or equal to the cross-sectional area of the second oil groove 500, in this way, under the action of the crankshaft 1000 and the moving disk 900, the climbing speed of the lubricating oil 1100 at the first oil groove 400 can be increased, and the time for the lubricating oil 1100 to be transported to the thrust surface 100 can be shortened, providing a reliable structural support for the lubricating oil 1100 to be effectively pushed to the thrust surface 100 of the bracket 10 when the compressor 90 operates.

[0139] In some embodiments, optionally, the cross-sectional area S1 of the first oil groove 400 and the cross-sectional area S2 of the second oil groove 500 satisfy: 0.28 ≤ S1 / S2 ≤ 0.8.

[0140] In this embodiment, the mating structure of the first oil groove 400 and the second oil groove 500 is further defined.

[0141] The cross-sectional area of the first oil sump 400 is denoted as S1, and the cross-sectional area of the second oil sump 500 is denoted as S2. Among them, the cross-sectional area S1 of the first oil sump 400 and the cross-sectional area S2 of the second oil sump 500 satisfy: 0.28 ≤ S1 / S2 ≤ 0.8. That is, the relationship between the cross-sectional area of the first oil sump 400 and the cross-sectional area of the second oil sump 500 is defined. This setting enables the lubricating oil 1100, under the action of the crankshaft 1000 and the driving disk 900, to increase the climbing speed of the lubricating oil 1100 at the first oil sump 400, and can shorten the time for the lubricating oil 1100 to be transported to the thrust surface 100, providing a reliable structural support for the lubricating oil 1100 to be effectively pushed to the thrust surface 100 of the bracket 10 when the compressor 90 operates.

[0142] Optionally, S1 / S2 = 0.3, S1 / S2 = 0.35, S1 / S2 = 0.38, S1 / S2 = 0.4, S1 / S2 = 0.46, S1 / S2 = 0.5, S1 / S2 = 0.55, S1 / S2 = 0.6, S1 / S2 = 0.64, S1 / S2 = 0.7, and S1 / S2 = 0.75, etc., which are not listed one by one here.

[0143] In some embodiments, optionally, the first oil sump 400 is arranged at an interval from the outer edge of the thrust surface 100.

[0144] In this embodiment, the positional relationship between the first oil sump 400 and the thrust surface 100 is further defined.

[0145] The first oil sump 400 is arranged at an interval from the outer edge of the thrust surface 100, that is, the first oil sump 400 is arranged at an interval from the outer edge of the thrust surface 100. This avoids the lubricating oil 1100 directly flowing out of the outer edge of the thrust surface 100 through the first oil sump 400, enabling the lubricating oil 1100 to be effectively pushed to the thrust surface 100 along the first oil sump 400, and also reducing the amount of the lubricating oil 1100 flowing out of the outer edge of the thrust surface 100, and can effectively lubricate and cool the thrust surface 100.

[0146] In some embodiments, optionally, as Figure 1 、 Figure 3 、 Figure 4 and Figure 6 shown, the first oil sump 400 extends obliquely.

[0147] As Figure 3 shown, on the plane where the thrust surface 100 is located, the included angle θ1 between the groove wall contour line of the first oil sump 400 and the preset straight line 600 satisfies: 25° ≤ θ1 ≤ 55°.

[0148] Among them, the preset straight line 600 passes through the center of the mounting hole 300 and the end point on one side of the outer edge of the first oil groove 400 away from the thrust surface 100.

[0149] In this embodiment, the structure of the first oil groove 400 is further defined.

[0150] The first oil groove 400 extends obliquely.

[0151] And the inclination angle of the first oil groove 400 is defined. Specifically, on the plane where the thrust surface 100 is located, the included angle between the groove wall contour line of the first oil groove 400 and the preset straight line 600 is denoted as θ1, where θ1 satisfies: 25° ≤ θ1 ≤ 55°. This setting can reduce the resistance when the lubricating oil 1100 transitions from the second oil groove 500 to the first oil groove 400, can increase the climbing speed of the lubricating oil 1100 at the first oil groove 400, can shorten the time for the lubricating oil 1100 to be transported to the thrust surface 100, and provides a reliable structural support for the lubricating oil 1100 to be effectively pushed to the thrust surface 100 of the bracket 10 when the compressor 90 operates.

[0152] Optionally, θ1 = 30°, θ1 = 32°, θ1 = 35°, θ1 = 38°, θ1 = 40°, θ1 = 42°, θ1 = 45°, θ1 = 47°, θ1 = 50°, θ1 = 51°, θ1 = 53°, and θ1 = 54°, etc., which are not listed one by one here.

[0153] Among them, the preset straight line 600 passes through the center of the mounting hole 300 and the end point on one side of the outer edge of the first oil groove 400 away from the thrust surface 100. It can also be understood that the preset straight line 600 extends along the radial direction of the mounting hole 300.

[0154] In some embodiments, optionally, the first oil groove 400 is an arc-shaped groove or an annular groove.

[0155] In this embodiment, the structure of the first oil groove 400 is further defined.

[0156] The first oil groove 400 is an arc-shaped groove or an annular groove.

[0157] This setting increases the mating area and mating angle between the first oil groove 400 and the thrust surface 100, so that when the lubricating oil 1100 is pushed to the first oil groove 400, it can lubricate and cool the thrust surface 100 in multiple directions and at multiple angles, increasing the mating area and mating angle between the lubricating oil 1100 and the thrust surface 100, so as to effectively reduce the wear amount at different positions of the thrust surface 100, and provides an effective and reliable structural support for improving the service performance of the compressor 90 and extending the service life of the compressor 90.

[0158] Optionally, the first oil groove 400 is an arc-shaped groove extending along the circumferential direction of the mounting hole 300.

[0159] Optionally, the first oil groove 400 is an annular groove extending along the circumference of the mounting hole 300.

[0160] In some embodiments, optionally, as Figure 4 and Figure 5 shown, a fillet 700 is provided at the connection between the first oil groove 400 and the second oil groove 500.

[0161] In this embodiment, the mating structure of the first oil groove 400 and the second oil groove 500 is further defined.

[0162] A fillet 700 is provided at the connection between the first oil groove 400 and the second oil groove 500. This setting enables a smooth transition at the connection between the first oil groove 400 and the second oil groove 500, which can reduce the resistance when the lubricating oil 1100 flows to the connection between the first oil groove 400 and the second oil groove 500, allowing the lubricating oil 1100 to be effectively pushed along the second oil groove 500 to the first oil groove 400, which is beneficial to increasing the climbing speed of the lubricating oil 1100 when it is pushed to the first oil groove 400.

[0163] At the same time, this structural setting can improve the structural strength of the bracket 10 at the connection between the first oil groove 400 and the second oil groove 500, reduce stress, and is beneficial to improving the service performance of the bracket 10.

[0164] In some embodiments, optionally, the number of the second oil grooves 500 is multiple.

[0165] The multiple second oil grooves 500 are arranged at intervals along the circumference of the mounting hole 300.

[0166] The number of the first oil grooves 400 is at least one, and each first oil groove 400 is connected to at least one second oil groove 500.

[0167] In this embodiment, the number and mating structure of the first oil groove 400 and the second oil groove 500 are further defined.

[0168] The number of the second oil grooves 500 is multiple, and multiple means greater than or equal to 2.

[0169] The number of the first oil grooves 400 is at least one.

[0170] The multiple second oil grooves 500 are arranged at intervals along the circumference of the mounting hole 300, and each first oil groove 400 is connected to at least one second oil groove 500. That is, each first oil groove 400 has at least one second oil groove 500 cooperating with it to supply the lubricating oil 1100.

[0171] Optionally, when the number of the first oil grooves 400 is multiple, the multiple first oil grooves 400 are arranged at intervals along the circumference of the mounting hole 300.

[0172] Optionally, when the number of the first oil grooves 400 is multiple, the multiple first oil grooves 400 are concentrated in the area with a larger wear amount of the thrust surface 100, and the multiple first oil grooves 400 are arranged at intervals.

[0173] Such as Figure 7 As shown, a compressor 90 according to some other embodiments of the present application includes a moving disk 900, a crankshaft 1000, lubricating oil 1100, and the bracket 10 of any one of the above embodiments.

[0174] The crankshaft 1000 is inserted through the mounting hole 300.

[0175] The lubricating oil 1100 is located between the crankshaft 1000 and the mounting hole 300.

[0176] The moving disk 900 is connected to the crankshaft 1000, and a part of the moving disk 900 is disposed opposite to the thrust surface 100.

[0177] The compressor 90 provided by the present application includes a moving disk 900, a crankshaft 1000, lubricating oil 1100, and the bracket 10 of any one of the above embodiments.

[0178] The bracket 10 has a thrust surface 100 and a mating surface 200. The thrust surface 100 and the mating surface 200 are disposed opposite to each other. The thrust surface 100 is used to support the moving disk 900, so as to ensure the stability of the operation of the compressor 90. The bracket 10 is provided with a mounting hole 300. The mounting hole 300 penetrates through the thrust surface 100 and the mating surface 200. The crankshaft 1000 is inserted through the mounting hole 300 and is connected to the moving disk 900.

[0179] Wherein, the compressor 90 further includes a stationary disk 1200. Specifically, the stationary disk 1200 cooperates with the moving disk 900. It can be understood that the stationary disk 1200 and the moving disk 900 enclose a compression chamber, and an exhaust port 1210 is provided on the stationary disk 1200. The compressor 90 further includes a motor. The motor is connected to the crankshaft 1000, and the crankshaft 1000 is connected to the moving disk 900. Thus, driven by the motor, the crankshaft 1000 drives the moving disk 900 to rotate relative to the stationary disk 1200, so as to compress the gas in the compression chamber. The compressed high-temperature and high-pressure gas is discharged through the exhaust port 1210, completing the processes of compression and exhaust.

[0180] When the compressor 90 operates, the moving disk 900 rotates relative to the bracket 10, causing friction between the surfaces of the moving disk 900 and the bracket 10 in contact, that is, causing friction between the moving disk 900 and the thrust surface 100, resulting in easy wear of the moving disk 900 and the thrust surface 100, affecting the service performance of the compressor 90 and shortening the service life of the compressor 90.

[0181] Among them, the thrust surface 100 is provided with a first oil groove 400, the hole wall of the mounting hole 300 is provided with a second oil groove 500, and the first oil groove 400 and the second oil groove 500 are connected. In this way, when the compressor 90 operates, the crankshaft 1000 drives the moving disk 900 to rotate. A part of the lubricating oil 1100 located between the mounting hole 300 and the crankshaft 1000 can flow to the first oil groove 400 via the second oil groove 500 under the action of centrifugal force, and accumulate on the thrust surface 100, lubricating and cooling the thrust surface 100, lubricating and cooling the moving disk 900, reducing the wear amount of the thrust surface 100 when the compressor 90 operates, and at the same time being able to reduce the wear amount of the moving disk 900. While ensuring the service performance of the compressor 90, it is beneficial to extend the service life of the bracket 10 and beneficial to extend the service life of the compressor 90, providing a structural support for ensuring the stability and reliability of the operation of the compressor 90.

[0182] It can be understood that the thrust surface 100 is provided with a first oil groove 400, and the hole wall of the mounting hole 300 is provided with a second oil groove 500. That is to say, both the thrust surface 100 and the mounting hole 300 are provided with oil grooves for the lubricating oil 1100 to flow. The first oil groove 400 and the second oil groove 500 cooperate to define the flow path of the lubricating oil 1100 flowing from the gap between the mounting hole 300 and the crankshaft 1000 to the thrust surface 100, so that the lubricating oil 1100 can be effectively guided to the thrust surface 100, providing a structural support for the effective filling of the lubricating oil 1100 between the moving disk 900 and the thrust surface 100.

[0183] The bracket 10 is located on the side of the moving disk 900 away from the static disk 1200. Specifically, the bracket 10 is fixedly connected to the static disk 1200. A thrust surface 100 is provided on the side of the bracket 10 facing the moving disk 900, and the bracket 10 supports the moving disk 900 through the thrust surface 100, thereby ensuring the stability of the operation of the compressor 90.

[0184] In some embodiments, optionally, the extending direction of the second oil groove 500 is the same as the rotation direction of the crankshaft 1000.

[0185] In this embodiment, the matching structure of the second oil groove 500 and the crankshaft 1000 is further defined.

[0186] The extending direction of the second oil groove 500 is the same as the rotation direction of the crankshaft 1000.

[0187] When the compressor 90 is operating, the crankshaft 1000 rotates. The lubricating oil 1100 located between the crankshaft 1000 and the mounting hole 300 is effectively guided and conveyed along the second oil groove 500 and the first oil groove 400 under the action of the crankshaft 1000 and the moving disk 900 to overcome its own weight, and reaches the thrust surface 100, so as to effectively fill the gap between the moving disk 900 and the thrust surface 100, and can effectively lubricate and cool the thrust surface 100, providing a reliable structural support for reducing the wear of the thrust surface 100.

[0188] The extending direction of the second oil groove 500 is the same as the rotating direction of the crankshaft 1000. In this way, when the crankshaft 1000 rotates, the lubricating oil 1100 can more easily climb along the second oil groove to the first oil groove 400, which is beneficial to reducing the resistance when guiding the flow of the lubricating oil 1100, so that the lubricating oil 1100 can effectively flow to the thrust surface 100.

[0189] In some embodiments, optionally, the gravitational acceleration of the lubricating oil 1100 is denoted as g.

[0190] The rotational angular velocity of the crankshaft 1000 is denoted as ω.

[0191] The radius of the mounting hole 300 is denoted as r.

[0192] As Figure 6 shown, when the second oil groove 500 extends in a curved manner, the included angle between the circumferential tangent 820 of the end point on the side of the second oil groove 500 away from the first oil groove 400 and the horizontal plane 810 is denoted as θ2.

[0193] When the second oil groove 500 extends obliquely, on the longitudinal section of the bracket 10, the included angle between the groove wall contour line of the second oil groove 500 and the horizontal plane 810 is denoted as θ2.

[0194] Among them, θ2 ≥ arctg(g / (r×ω 2 ))

[0195] The horizontal plane 810 is perpendicular to the height direction of the compressor 90.

[0196] The longitudinal section of the bracket 10 is perpendicular to the horizontal plane 810.

[0197] In this embodiment, the structure of the second oil groove 500 is further defined.

[0198] The gravitational acceleration of the lubricating oil 1100 is denoted as g, the rotational angular velocity of the crankshaft 1000 is denoted as ω, and the radius of the mounting hole 300 is denoted as r.

[0199] When the second oil groove 500 bends and extends, the included angle between the circumferential tangent line 820 of the end point on the side of the second oil groove 500 away from the first oil groove 400 and the horizontal plane 810 is denoted as θ2. The extending direction of the second oil groove 500 is the same as the rotating direction of the crankshaft 1000.

[0200] When the second oil groove 500 extends obliquely, on the longitudinal section of the bracket 10, the included angle between the groove wall contour line of the second oil groove 500 and the horizontal plane 810 is denoted as θ2. The extending direction of the second oil groove 500 is the same as the rotating direction of the crankshaft 1000.

[0201] g, ω, r, and θ2 satisfy θ2 ≥ arctg(g / (r × ω 2 ))). At a certain rotational speed of the lubricating oil 1100, the axial component of the thrust of the hole wall of the mounting hole 300 on the lubricating oil 1100 is greater than the self-weight of the lubricating oil 1100, which can effectively increase the oil supply amount to the thrust surface 100, thereby effectively lubricating and cooling the thrust surface 100 of the bracket 10 and reducing the risk of wear of the thrust surface 100.

[0202] As Figure 7 shown, a refrigeration device according to some other embodiments of the present application includes: a compressor 90 as in any of the above embodiments.

[0203] The refrigeration device provided by the present application includes the compressor 90 as in any of the above embodiments, and therefore has all the beneficial effects of the above compressor 90, which will not be elaborated one by one here.

[0204] Optionally, the bracket 10 has a thrust surface 100 and a mating surface 200 arranged oppositely. The bracket 10 is provided with a mounting hole 300, and the mounting hole 300 penetrates through the thrust surface 100 and the mating surface 200. The thrust surface 100 is provided with a first oil groove 400, and the hole wall of the mounting hole 300 is provided with a second oil groove 500. The first oil groove 400 is connected to the second oil groove 500. The first oil groove 400 and the second oil groove 500 cooperate to have the function of conveying a part of the lubricating oil 1100 between the mounting hole 300 and the crankshaft 1000 to the thrust surface 100.

[0205] Optionally, the compressor 90 of the present application includes a scroll compressor.

[0206] The thrust surface 100 of the bracket 10 of the present application has the function of supporting the moving disk 900.

[0207] The second oil groove 500 bends and extends along the circumferential direction of the mounting hole 300. Optionally, the second oil groove 500 extends spirally. The extending direction of the second oil groove 500 is consistent with the rotating direction of the crankshaft 1000.

[0208] The acceleration due to gravity of the lubricating oil 1100 is denoted as g, the rotational angular velocity of the crankshaft 1000 is denoted as ω, and the radius of the mounting hole 300 is denoted as r; when the second oil groove 500 bends and extends, the included angle between the circumferential tangent 820 of the end point on the side of the second oil groove 500 facing away from the first oil groove 400 and the horizontal plane 810 is denoted as θ2; when the second oil groove 500 extends obliquely, in the longitudinal section of the bracket 10, the included angle between the groove wall contour line of the second oil groove 500 and the horizontal plane 810 is denoted as θ2.

[0209] Among them, θ2≥arctg(g / (r×ω 2 )), the horizontal plane 810 is perpendicular to the height direction of the compressor 90, and the longitudinal section of the bracket 10 is perpendicular to the horizontal plane 810.

[0210] The bracket 10 of the present application guides and transports the lubricating oil 1100 temporarily stored in the mounting hole 300 to the thrust surface 100 by means of the first oil groove 400 provided on the thrust surface 100 and the second oil groove 500 provided on the hole wall of the mounting hole 300. The extending direction of the second oil groove 500 is consistent with the rotation direction of the crankshaft 1000. At a certain rotational speed of the lubricating oil 1100, the axial component of the thrust of the hole wall of the mounting hole 300 on the lubricating oil 1100 is greater than the self-weight of the lubricating oil 1100, which can effectively increase the oil supply amount of the thrust surface 100, thereby effectively lubricating and cooling the thrust surface 100 of the bracket 10 and reducing the risk of wear of the thrust surface 100.

[0211] Centrifugal force: F1 = m×r×ω 2 , Fn = F1 / cos(θ2) = m×r×ω 2 / cos(θ2), as Figure 2 shown. Gravity: Fg = m×g, Fa = Fn×sin(θ2) = m×r×ω 2 ×tan(θ2), as Figure 2 shown.

[0212] Among them, the acceleration due to gravity of the lubricating oil 1100 is denoted as g; the rotational angular velocity of the crankshaft 1000 is denoted as ω; the radius of the mounting hole 300 is denoted as r; when the second oil groove 500 bends and extends, the included angle between the circumferential tangent 820 of the end point on the side of the second oil groove 500 facing away from the first oil groove 400 and the horizontal plane 810 is denoted as θ2; when the second oil groove 500 extends obliquely, in the longitudinal section of the bracket 10, the included angle between the groove wall contour line of the second oil groove 500 and the horizontal plane 810 is denoted as θ2; m is the weight of the lubricating oil 1100.

[0213] Among them, Fa≥Fg, that is, θ2≥arctg(g / (r×ω 2 )) to ensure effective oil supply to the thrust surface 100.

[0214] Optionally, asFigure 7 As shown in the figure, the compressor 90 includes: a moving disk 900, a crankshaft 1000, lubricating oil 1100, a stationary disk 1200, an exhaust port 1210, a main housing 1300, a suction pipe 1400, a main balance weight 1500, an electric motor, a lower support ring 1800, a mounting base plate 1900, an upper housing 2000, a cross slip ring 2100, a throttling member 2200, an exhaust pipe 2300, a secondary frame 2400, and a lower housing 2500. The electric motor includes an electric motor stator 1600 and an electric motor rotor 1700.

[0215] In this application, the term "a plurality of" means two or more, unless otherwise clearly defined. Terms such as "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0216] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The above is only the preferred embodiment of this application and is not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A bracket for a compressor, the compressor including a moving disk, characterized in that, The bracket has a thrust surface and a mating surface arranged oppositely. The bracket is provided with a mounting hole which penetrates through the thrust surface and the mating surface. The thrust surface is used for supporting the moving disk. The thrust surface is provided with a first oil groove, and the hole wall of the mounting hole is provided with a second oil groove which is connected to the first oil groove.

2. The bracket according to claim 1, characterized in that, The second oil groove is arranged at an interval from the mating surface; or the second oil groove extends from the mating surface to the first oil groove.

3. The bracket according to claim 2, wherein The mounting hole includes a connected first hole section and a second hole section. The first hole section penetrates through the thrust surface, and the second hole section penetrates through the mating surface. The cross-sectional area of the flow passage of the second hole section is smaller than that of the first hole section. When the second oil groove is arranged at an interval from the mating surface, the end of the second oil groove facing away from the first oil groove is located at the connection of the first hole section and the second hole section, or is located at the second hole section.

4. The stent according to any one of claims 1 to 3, characterized in that The second oil groove extends in a circumferentially curved manner along the mounting hole, or the second oil groove extends obliquely.

5. The stent according to any one of claims 1 to 3, characterized in that, The cross-sectional area of the first oil groove is less than or equal to that of the second oil groove.

6. The bracket according to claim 5, characterized in that, The cross-sectional area S1 of the first oil groove and the cross-sectional area S2 of the second oil groove satisfy: 0.28 ≤ S1 / S2 ≤ 0.

8.

7. The stent according to any one of claims 1 to 3, characterized in that The first oil groove is arranged at an interval from the outer edge of the thrust surface.

8. The bracket according to claim 7, wherein The first oil groove extends obliquely. On the plane where the thrust surface is located, the included angle θ1 between the groove wall contour line of the first oil groove and a preset straight line satisfies: 25° ≤ θ1 ≤ 55°; Wherein, the preset straight line passes through the center of the mounting hole and the end point on the side of the outer edge of the first oil groove facing away from the thrust surface.

9. The bracket according to claim 7, characterized in that, The first oil groove is an arc-shaped groove or an annular groove.

10. The bracket according to any one of claims 1 to 3, characterized in that, A fillet is provided at the connection of the first oil groove and the second oil groove.

11. The stent according to any one of claims 1 to 3, characterized in that, The number of the second oil grooves is multiple, and the multiple second oil grooves are arranged at intervals along the circumference of the mounting hole. The number of the first oil grooves is at least one, and each first oil groove is connected to at least one second oil groove.

12. A compressor, characterized in that, Comprising: A moving disk; A crankshaft; Lubricating oil; And The bracket according to any one of claims 1 to 11, wherein the crankshaft is inserted through the mounting hole, the lubricating oil is located between the crankshaft and the mounting hole, the moving disk is connected to the crankshaft, and a part of the moving disk is arranged oppositely to the thrust surface.

13. The compressor according to claim 12, characterized in that, The extending direction of the second oil groove is the same as the rotation direction of the crankshaft.

14. The compressor according to claim 13, characterized in that, The gravitational acceleration of the lubricating oil is denoted as g, the rotational angular velocity of the crankshaft is denoted as ω, and the radius of the mounting hole is denoted as r; When the second oil groove extends in a curved manner, the included angle between the circumferential tangent of the end point on the side of the second oil groove facing away from the first oil groove and the horizontal plane is denoted as θ2; When the second oil groove extends obliquely, on the longitudinal section of the bracket, the included angle between the groove wall contour line of the second oil groove and the horizontal plane is denoted as θ2; where θ2≥arctg(g / (r×ω 2 ))), the horizontal plane is perpendicular to the height direction of the compressor, and the longitudinal section of the bracket is perpendicular to the horizontal plane.

15. A refrigeration device, characterized in that, Comprising: The compressor according to any one of claims 12 to 14.

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