Bearing processing methods, bearings and compressors

Abstract

This invention provides a bearing processing method, a bearing, and a compressor. The bearing processing method includes: processing a flange portion and a hub portion; processing a mounting groove on the surface of the flange portion and a mounting hole on the bottom wall of the mounting groove; processing a mounting section at the end of the hub portion and a mounting protrusion on the surface of the hub portion; installing the mounting protrusion into the mounting groove, while extending the mounting section into the mounting hole, wherein the mounting groove is used to limit the hub portion so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove; and fixing the hub portion and the flange portion together.

Description

Technical Field

[0001] This invention relates to the field of bearing processing technology, and more specifically, to a bearing processing method, a bearing, and a compressor. Background Technology

[0002] In existing technologies, bearings with annular oil grooves are typically manufactured by first casting the bearing part using die casting or pouring, and then machining the annular oil groove using cutting methods such as turning or milling. This machining method is generally only suitable for materials such as cast iron and is difficult to apply to the machining of bearings made of steel. Furthermore, because the annular oil groove is located inside the bearing, its machining is quite difficult. Summary of the Invention

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

[0004] Therefore, the first objective of this invention is to provide a bearing processing method.

[0005] The second objective of this invention is to provide a bearing.

[0006] The third objective of this invention is to provide a compressor.

[0007] To achieve at least one of the above objectives, according to a first aspect of the present invention, a bearing processing method is provided, the bearing processing method comprising: processing a flange portion and a hub portion; processing a mounting groove on the surface of the flange portion and processing a mounting hole on the bottom wall of the mounting groove; processing a mounting section at the end of the hub portion and processing a mounting protrusion on the surface of the hub portion; installing the mounting protrusion into the mounting groove, while extending the mounting section into the mounting hole, the mounting groove being used to limit the hub portion so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove; and fixing the hub portion and the flange portion together.

[0008] The bearing machining method proposed in this application is applicable to machining bearings with annular grooves. Understandably, the annular groove is located inside the bearing. Machining a bearing with an annular groove as a single unit would result in greater machining difficulty, higher machining costs, and reduced machining accuracy. To reduce the machining difficulty of bearings, this application proposes a method for machining bearings in parts, thereby reducing the machining complexity. The specific machining method is as follows.

[0009] First, the flange and hub are machined separately. The flange can be made of steel of national standard size by laser cutting, turning, stamping or other methods. The hub can be made of metal bar or tube of national standard size by turning. The materials of the flange and hub can be the same or different.

[0010] Further processing is performed on the flange and hub portions after machining. A mounting groove is machined on the surface of the flange, and a mounting hole (through hole) is machined on the bottom wall of the mounting groove. To allow the hub portion to be mounted on the flange, a structure adapted to the mounting groove and mounting hole is machined on the hub portion. Specifically, a mounting section is machined at the end of the hub portion, and a mounting protrusion is machined on the surface of the hub portion. Along the extension direction of the hub portion, the mounting protrusion is adjacent to the mounting section, and the size of the mounting protrusion is larger than that of the mounting section. The mounting section adapts to the mounting hole of the flange, and the outer diameter of the mounting section is smaller than the inner diameter of the mounting hole. The mounting section and the mounting hole define an annular groove. The mounting protrusion adapts to the mounting groove of the flange, and the mounting protrusion can be installed within the mounting groove to limit the movement of the hub portion.

[0011] Specifically, during the process of installing the hub portion onto the flange portion, the mounting protrusion is first installed into the mounting groove. Simultaneously, the mounting section of the hub portion is inserted into the mounting hole of the flange portion. When the mounting protrusion is properly installed in the mounting groove, the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. Since the dimensions of the mounting protrusion and the mounting groove are compatible, the mounting groove can limit the mounting protrusion when it is installed, keeping it in an appropriate position. This, in turn, allows the mounting section to be held in an appropriate position relative to the mounting hole, so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. Understandably, the relative position of the hub portion and the flange portion is defined by the cooperation of the mounting protrusion and the mounting groove. While the hub portion and the flange portion are relatively fixed, the mounting section of the hub portion and the mounting hole of the flange portion define an annular groove. Compared to bearing machining methods that machine an annular groove inside the flange portion, this application reduces the machining difficulty of the annular groove and improves its accuracy by defining it through the mounting section and the mounting hole.

[0012] In one possible technical solution, the mounting groove is machined into a circular groove, and the cross-sectional shape of the mounting protrusion is circular.

[0013] Furthermore, after the mounting protrusion is installed in the mounting groove, the hub and flange are connected to keep the hub fixed relative to the flange, thus forming a single integral structure. Specifically, the hub and flange are connected by welding. This prevents the hub from moving relative to the flange, thereby preventing changes in the dimensions of the annular groove and ensuring that the dimensional accuracy of the annular groove meets the requirements.

[0014] By dividing the bearing into a flange and a hub, the hub and flange are machined separately first, and then connected to define the annular groove. This allows for the formation of an annular groove even when the bearing is made of steel, without the need for cutting the steel. Furthermore, it reduces the machining difficulty of the bearing, improves the precision of the annular groove, lowers the production cost, and increases the production efficiency.

[0015] According to the bearing processing method described above, the present invention may also have the following distinguishing technical features:

[0016] In some technical solutions, optionally, before installing the mounting protrusion into the mounting groove, the bearing processing method further includes: processing a first limiting part on the inner wall of the mounting groove; processing a second limiting part that matches the first limiting part on the outer wall of the mounting protrusion; and installing the mounting protrusion into the mounting groove, specifically including: inserting the mounting protrusion into the mounting groove, while simultaneously making the second limiting part cooperate with the first limiting part to limit the mounting protrusion.

[0017] In this technical solution, the bearing processing method is further defined. Before installing the mounting protrusion into the mounting groove, a first limiting part is machined on the inner wall of the mounting groove, and a second limiting part adapted to the first limiting part is machined on the outer wall of the mounting protrusion. Understandably, if the mounting protrusion is not limited when installed in the mounting groove, it is easy for the mounting protrusion to rotate relative to the mounting groove under external force, which in turn causes the hub to easily rotate relative to the flange under external force. When welding the hub and flange, if the hub rotates relative to the flange, it is easy to cause incomplete weld joints, reduced weld quality, and weakened connection between the hub and flange. To avoid the above problems, this application machined a first limiting part and a second limiting part in the mounting groove and the mounting protrusion, respectively. The cooperation of the first and second limiting parts can limit the mounting protrusion, preventing it from rotating relative to the mounting groove, and thus preventing the hub from rotating relative to the flange.

[0018] Furthermore, after the first limiting part and the second limiting part are processed, when the mounting protrusion is installed in the mounting groove, the mounting protrusion is first inserted into the mounting groove. At the same time as the mounting protrusion is inserted, the second limiting part and the first limiting part cooperate with each other to limit the mounting protrusion through the cooperation between the two, so as to prevent the mounting protrusion from rotating relative to the mounting groove, and thus prevent the hub part from rotating relative to the flange part.

[0019] By machining a first limiting part on the inner wall of the mounting groove and a second limiting part that matches the first limiting part on the outer wall of the mounting protrusion, the mounting protrusion can be limited by the cooperation of the first and second limiting parts, preventing the mounting protrusion from rotating relative to the mounting groove, and thus preventing the hub from rotating relative to the flange. In this way, the hub can remain stable when connected to the flange, avoiding the possibility of incomplete welding between the flange and the hub, and improving the strength of the connection between the flange and the hub.

[0020] In some technical solutions, optionally, the first limiting part and the second limiting part are processed into mutually compatible planes so that the second limiting part and the first limiting part cooperate with each other, specifically including: aligning the second limiting part with the first limiting part.

[0021] In this technical solution, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be machined into various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible technical solution, the first and second limiting parts are machined into mutually adaptable planes. During the insertion of the mounting protrusion into the mounting groove, the second and first limiting parts are engaged, specifically, the second limiting part, which is machined into a plane, is aligned with the first limiting part, which is also machined into a plane. In this way, the mounting protrusion cannot rotate within the mounting groove, thereby limiting the wheel hub through the engagement of the first and second limiting parts, preventing the wheel hub from rotating relative to the flange.

[0022] In some technical solutions, optionally, the first limiting part and the second limiting part are machined with mutually compatible threads so that the second limiting part and the first limiting part cooperate with each other, specifically including: screwing the second limiting part and the first limiting part together.

[0023] In this technical solution, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be machined into various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible technical solution, the first and second limiting parts are machined with mutually adaptable threads, allowing them to screw together. During the insertion of the mounting protrusion into the mounting groove, the second and first limiting parts are engaged; specifically, the threaded second limiting part is screwed onto the threaded first limiting part. As the second and first limiting parts are screwed together, the mounting protrusion is gradually inserted into the mounting groove until the second and first limiting parts are fully engaged, and the mounting protrusion is installed in the mounting groove. Thus, the mounting protrusion cannot rotate within the mounting groove, thereby limiting the wheel hub through the engagement of the first and second limiting parts, preventing the wheel hub from rotating relative to the flange.

[0024] In some technical solutions, optionally, the first limiting part and the second limiting part are processed into grooves so that the second limiting part and the first limiting part cooperate with each other. Specifically, this includes: aligning the second limiting part with the first limiting part so that the first limiting part and the second limiting part surround a positioning hole; and inserting the positioning pin into the positioning hole.

[0025] In this technical solution, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be machined into various structural forms, as long as they can be adapted to each other to limit the movement of the hub. In one possible solution, the first and second limiting parts are machined into grooves, so that when the first and second limiting parts are aligned, they can form a positioning hole. The bearing also includes a positioning pin adapted to the positioning hole. During the insertion of the mounting protrusion into the mounting groove, the second and first limiting parts are engaged, specifically aligned so that they form a positioning hole, and then the positioning pin is inserted into the positioning hole to limit the movement of the mounting protrusion, preventing it from rotating relative to the mounting groove, thereby limiting the movement of the hub and preventing it from rotating relative to the flange.

[0026] In one possible technical solution, there are multiple first and second limiting parts, with the same number of first and second limiting parts, forming multiple positioning holes. There are also multiple positioning pins; by inserting these pins into their respective positioning holes, the positioning effect can be improved.

[0027] In some technical solutions, optionally, one of the first and second limiting portions is machined as a protrusion and the other as a groove, so that the second limiting portion and the first limiting portion cooperate with each other. Specifically, this includes: inserting the first limiting portion and the second limiting portion into each other. In this technical solution, the step of making the second limiting portion cooperate with the first limiting portion is specifically defined. The first and second limiting portions can be machined into various structural forms, as long as they can be adapted to each other to achieve the limiting of the wheel hub. In one possible technical solution, one of the first and second limiting portions is machined as a protrusion, and the other is machined as a groove. The protrusion and the groove are adapted to each other. Before inserting the mounting protrusion into the mounting groove, the first and second limiting portions are aligned. Then, during the process of inserting the mounting protrusion into the mounting groove, the first and second limiting portions interlock, and their concave-convex cooperation achieves the limiting of the mounting protrusion, preventing the mounting protrusion from rotating relative to the mounting groove, thereby limiting the hub portion and preventing the hub portion from rotating relative to the flange portion. A second aspect of the invention also proposes a bearing, comprising: a flange portion, the surface of which is provided with a mounting groove, and the bottom wall of the mounting groove is provided with a mounting hole; a hub portion connected to the flange portion, the hub portion having a mounting protrusion adapted to the mounting groove, and the end of the hub portion having a mounting section; the mounting protrusion is installed in the mounting groove, the mounting groove is used to limit the hub portion, the mounting section extends into the mounting hole, and the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0028] The bearing proposed in this application includes a flange portion and a hub portion. The flange portion has a mounting groove on its surface, and a mounting hole on the bottom wall of the mounting groove. The hub portion has a mounting protrusion adapted to the mounting groove, and a mounting section at its end. By connecting the hub portion to the flange portion, the mounting section can be inserted into the mounting hole. The outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. Furthermore, during the connection of the hub portion and the flange portion, the mounting protrusion is inserted into the mounting groove to limit the movement of the hub portion, ensuring that the mounting section is in the correct position and that the dimensional accuracy of the annular groove meets the requirements.

[0029] Understandably, since the annular groove is located inside the bearing, machining a bearing with an annular groove as a single unit would result in greater machining difficulty, higher machining costs, and reduced machining accuracy. The bearing proposed in this application, by configuring it as a separate structure comprising a flange and a hub, and defining the annular groove while connecting the flange to the hub, reduces the machining difficulty of the bearing and ensures the dimensional accuracy of the annular groove.

[0030] Specifically, in the bearing manufacturing process, the flange and hub are machined separately first. Then, a mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove. A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub. The mounting hole is a through hole, and the mounting section is fitted to it. The cross-sectional dimension of the mounting section is smaller than that of the mounting hole. When the mounting section is inserted into the mounting hole, there is a gap between the outer wall of the mounting section and the inner wall of the mounting hole to define the annular groove. The mounting protrusion is fitted to the mounting groove. When connecting the hub and flange, the mounting protrusion is inserted into the mounting groove. This allows the mounting groove to limit the mounting protrusion, thereby limiting the hub and ensuring it remains in the correct position relative to the flange. This ensures the correct relative position between the mounting section of the hub and the mounting hole of the flange, guaranteeing that the shape and dimensions of the annular groove meet the requirements.

[0031] Furthermore, after the mounting protrusion is installed in the mounting groove, the hub and flange can be fixedly connected by welding to prevent the hub and flange from separating.

[0032] By dividing the bearing into a flange and a hub, the hub and flange are machined separately first, and then connected to define the annular groove. This allows for the formation of an annular groove even when the bearing is made of steel, without the need for cutting the steel. Furthermore, it reduces the machining difficulty of the bearing, improves the precision of the annular groove, lowers the production cost, and increases the production efficiency.

[0033] In some technical solutions, optionally, the flange portion has a first limiting portion located on the wall of the mounting groove, and the hub portion has a second limiting portion adapted to the first limiting portion, located on the wall surface of the mounting protrusion.

[0034] In this technical solution, to prevent the hub from moving relative to the flange, a first limiting part is provided in the flange, and a second limiting part adapted to the first limiting part is provided in the hub. The hub is limited by the cooperation of the first and second limiting parts. Specifically, the first limiting part is provided on the wall of the mounting groove, and the second limiting part is provided on the wall surface of the mounting protrusion. During the installation of the mounting protrusion in the mounting groove, the second limiting part and the first limiting part cooperate to limit the mounting protrusion. In this way, the mounting protrusion is prevented from rotating relative to the mounting groove, thereby preventing the hub from rotating relative to the flange.

[0035] By providing a first limiting part on the wall of the mounting groove and a second limiting part adapted to the first limiting part on the outer wall of the mounting protrusion, the mounting protrusion can be limited by the cooperation of the first limiting part and the second limiting part, preventing the mounting protrusion from rotating relative to the mounting groove, and thus preventing the hub from rotating relative to the flange.

[0036] In some technical solutions, the first limiting part and the second limiting part are optionally constructed as mutually compatible planes.

[0037] In this technical solution, the structures of the first limiting part and the second limiting part are defined. The first limiting part and the second limiting part can be processed into various structural forms, as long as they can be adapted to each other to achieve the limiting of the wheel hub. In one possible technical solution, the first limiting part and the second limiting part are constructed as mutually adaptable planes.

[0038] Specifically, during the process of inserting the mounting protrusion into the mounting groove, the operator can first align the first limiting part and the second limiting part. Since both the first limiting part and the second limiting part are constructed as planes, when the mounting protrusion is inserted into the mounting groove, the cooperation of the first limiting part and the second limiting part can prevent the mounting protrusion from rotating relative to the mounting groove, thereby preventing the hub part from rotating relative to the flange part.

[0039] In some technical solutions, the first limiting part and the second limiting part are optionally constructed to be mutually compatible threads.

[0040] In this technical solution, the structures of the first limiting part and the second limiting part are defined. The first limiting part and the second limiting part can be processed into various structural forms, as long as they can be adapted to each other to achieve the limiting of the hub part. In one possible technical solution, the first limiting part and the second limiting part are constructed as mutually adaptable threads, and the first limiting part and the second limiting part can be screwed together.

[0041] Specifically, during the installation of the mounting protrusion into the mounting groove, the operator first screws the threaded second limiting part to the threaded first limiting part. As the second and first limiting parts are screwed together, the mounting protrusion is gradually inserted into the mounting groove until the second and first limiting parts are fully engaged, and the mounting protrusion is properly installed within the mounting groove. Because the second and first limiting parts are connected by a threaded connection, the mounting protrusion cannot rotate relative to the mounting groove, thereby preventing the hub from rotating relative to the flange.

[0042] In some technical solutions, the bearing may optionally include: at least one positioning post, the first limiting part and the second limiting part are configured as grooves, the first limiting part and the corresponding second limiting part surround a positioning hole, and the positioning post is inserted into the corresponding positioning hole.

[0043] In this technical solution, the structures of the first and second limiting parts are defined. The first and second limiting parts can be processed into various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible technical solution, the first and second limiting parts are constructed as mutually adaptable grooves, and when the first and second limiting parts are aligned, they together form a positioning hole. The bearing also includes a positioning pin adapted to the positioning hole; by inserting the positioning pin into the positioning hole, the wheel hub can be limited.

[0044] Specifically, during the installation of the mounting protrusion into the mounting groove, the operator first aligns the second limiting part, which is configured as a groove, with the first limiting part, which is also configured as a groove. Then, the mounting protrusion is inserted into the mounting groove. When the mounting protrusion is properly installed in the mounting groove, the second and first limiting parts together form a positioning hole. The bearing also includes a positioning pin, which is inserted into the positioning hole. In this way, the mounting protrusion is limited by the positioning pin, preventing it from rotating relative to the mounting groove, thereby achieving positioning of the hub and preventing the hub from rotating relative to the flange.

[0045] In some technical solutions, optionally, there are multiple first limiting parts and multiple second limiting parts, with multiple first limiting parts evenly distributed along the circumference of the mounting groove and multiple second limiting parts evenly distributed along the circumference of the mounting protrusion.

[0046] In this technical solution, the number of the first limiting part and the second limiting part is limited. When the first limiting part and the second limiting part are constructed as grooves, there can be multiple first limiting parts and multiple second limiting parts, with the number of first limiting parts being the same as the number of second limiting parts. Multiple first limiting parts and multiple second limiting parts together form multiple positioning holes. There are also multiple positioning pins, with the number of positioning pins being the same as the number of first limiting parts and second limiting parts.

[0047] Furthermore, multiple first limiting parts are evenly distributed along the circumference of the mounting groove, and multiple second limiting parts are evenly distributed along the circumference of the mounting protrusion, thereby improving the positioning effect of the positioning post.

[0048] In some technical solutions, optionally, one of the first limiting part and the second limiting part is constructed as a protrusion, and the other is constructed as a groove.

[0049] In this technical solution, the structures of the first and second limiting parts are defined. The first and second limiting parts can be processed into various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible technical solution, one of the first and second limiting parts is constructed as a protrusion, and the other as a groove. The protrusion and the groove are adapted to each other. Before inserting the mounting protrusion into the mounting groove, the first and second limiting parts are aligned. Then, during the insertion of the mounting protrusion into the mounting groove, the first and second limiting parts interlock, their concave-convex fit achieving the limitation of the mounting protrusion, preventing the mounting protrusion from rotating relative to the mounting groove, thereby limiting the wheel hub and preventing the wheel hub from rotating relative to the flange.

[0050] In some technical solutions, the cross-sectional dimensions of the mounting groove are optionally the same as those of the mounting protrusion.

[0051] In this technical solution, the cross-sectional dimensions of the mounting groove and the mounting protrusion are defined. Specifically, the cross-sectional dimensions of the mounting groove are the same as those of the mounting protrusion. Understandably, if the cross-sectional dimension of the mounting protrusion is smaller than that of the mounting groove, a gap will exist between the outer wall of the mounting protrusion and the wall of the mounting groove when the mounting protrusion is installed in the mounting groove, making it easier for the mounting protrusion to rotate relative to the mounting groove. By making the dimensions of the mounting protrusion and the mounting groove identical, the outer wall of the mounting protrusion can fit snugly against the inner wall of the mounting groove, making it difficult for the mounting protrusion to rotate relative to the mounting groove, thus allowing the mounting groove to provide a certain degree of restraint on the mounting protrusion. Furthermore, by making the cross-sectional dimensions of the mounting protrusion and the mounting groove identical, external impurities can be prevented from entering the gap between the mounting protrusion and the mounting groove, reducing damage to the bearing from external impurities and extending the bearing's service life.

[0052] In some technical solutions, the groove depth of the mounting groove is optionally less than 20% of the flange thickness.

[0053] In this technical solution, the relationship between the depth of the mounting groove and the thickness of the flange is defined. Specifically, the depth of the mounting groove is less than 20% of the flange thickness. Understandably, if the depth of the mounting groove is too large, it can easily lead to thin walls in the flange, resulting in a decrease in flange strength. To improve the strength of the flange, this application sets the depth of the mounting groove to be less than 20% of the flange thickness. This ensures that the flange strength meets the usage requirements, prevents flange breakage, and extends the bearing's service life.

[0054] In some technical solutions, optionally, the wall thickness of the mounting section is greater than or equal to 0.75 mm.

[0055] In this technical solution, the wall thickness of the mounting section is limited. Specifically, to reduce the weight of the bearing, the mounting section is constructed as a tube, with a wall thickness greater than or equal to 0.75 mm. This ensures that the strength of the mounting section meets the usage requirements while reducing the overall weight of the bearing, which is beneficial for lightweight product design.

[0056] In some technical solutions, optionally, the length of the installation section is greater than or equal to 5mm.

[0057] In this technical solution, the length of the mounting section is limited. Specifically, the length of the mounting section is greater than or equal to 5 mm. Understandably, when the hub portion shifts relative to the flange portion, the mounting section extends into the mounting hole, thereby limiting the hub portion through the fit between the mounting section and the mounting hole. Therefore, by limiting the length of the mounting section to greater than or equal to 5 mm, the limiting capability of the mounting section is improved, and it is ensured that the annular groove defined by the mounting section and the mounting hole meets the bearing's usage and strength requirements.

[0058] In some technical solutions, optionally, the cross-sectional width of the annular groove is greater than or equal to 0.25 mm.

[0059] In this technical solution, the cross-sectional width of the annular groove is limited. Specifically, the cross-sectional width of the annular groove is greater than or equal to 0.25 mm. This ensures that the dimensions of the annular groove meet the requirements for bearing use.

[0060] In some technical solutions, optionally, the material of the hub and the material of the flange are weldable.

[0061] In this technical solution, the materials for the hub and flange are specified. Specifically, the materials of the hub and flange are weldable, allowing the operator to connect them into a single structure via welding. This prevents movement of the hub relative to the flange, thus avoiding changes in the dimensions of the annular groove and ensuring that the dimensional accuracy of the annular groove meets requirements.

[0062] A third aspect of the invention also provides a compressor comprising the bearings proposed in the second aspect of the invention.

[0063] The compressor provided in the third aspect of the present invention, having the bearings proposed in the second aspect of the present invention, has all the beneficial effects of bearings.

[0064] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0065] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0066] Figure 1 One of the schematic flowcharts of a bearing manufacturing method according to an embodiment of the present invention is shown;

[0067] Figure 2 A second schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown;

[0068] Figure 3 The third schematic flowchart illustrates a bearing processing method according to an embodiment of the present invention;

[0069] Figure 4 The fourth schematic flowchart illustrates a bearing processing method according to an embodiment of the present invention;

[0070] Figure 5 Fifth of the flowcharts illustrates a bearing manufacturing method according to an embodiment of the present invention;

[0071] Figure 6 A schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown in Figure 6.

[0072] Figure 7 One of the structural schematic diagrams of a bearing according to an embodiment of the present invention is shown;

[0073] Figure 8 A second schematic diagram of the bearing structure according to an embodiment of the present invention is shown;

[0074] Figure 9 One of the schematic diagrams of the hub portion according to an embodiment of the present invention is shown;

[0075] Figure 10 A second schematic diagram of the hub portion according to an embodiment of the present invention is shown;

[0076] Figure 11 One of the structural schematic diagrams of the flange portion according to an embodiment of the present invention is shown;

[0077] Figure 12 A second schematic diagram of the flange portion according to an embodiment of the present invention is shown;

[0078] Figure 13 The third schematic diagram shows the structure of the hub portion according to an embodiment of the present invention;

[0079] Figure 14 The fourth schematic diagram shows the structure of the hub portion according to an embodiment of the present invention;

[0080] Figure 15The third schematic diagram shows the structure of the flange portion according to an embodiment of the present invention;

[0081] Figure 16 The fourth schematic diagram shows the structure of the flange portion according to an embodiment of the present invention;

[0082] Figure 17 Fifth schematic diagram of the hub portion according to an embodiment of the present invention is shown;

[0083] Figure 18 A third schematic diagram of the bearing structure according to an embodiment of the present invention is shown;

[0084] Figure 19 The fourth schematic diagram shows the structure of a bearing according to an embodiment of the present invention;

[0085] Figure 20 Fifth schematic diagram of the flange portion according to an embodiment of the present invention is shown;

[0086] Figure 21 A sixth schematic diagram of the flange portion according to an embodiment of the present invention is shown;

[0087] Figure 22 Sixth schematic diagram of the structure of the hub portion according to an embodiment of the present invention is shown;

[0088] Figure 23 The seventh schematic diagram shows the structure of the hub portion according to an embodiment of the present invention;

[0089] Figure 24 Fifth schematic diagram of the bearing structure according to an embodiment of the present invention is shown;

[0090] Figure 25 Sixth schematic diagram of the bearing structure according to an embodiment of the present invention is shown;

[0091] Figure 26 Eighth schematic diagram of the hub portion according to an embodiment of the present invention;

[0092] Figure 27 A schematic diagram of the hub portion according to an embodiment of the present invention is shown in number nine.

[0093] Figure 28 A schematic diagram of the flange portion according to an embodiment of the present invention is shown in Figure 7.

[0094] Figure 29 The eighth schematic diagram shows the structure of the flange portion according to an embodiment of the present invention.

[0095] in, Figures 7 to 29 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0096] 100 Bearing, 110 Flange, 111 Mounting groove, 112 Mounting hole, 113 Annular groove, 114 First limiting part, 120 Hub part, 121 Mounting protrusion, 122 Mounting section, 123 Second limiting part, 130 Positioning pin. Detailed Implementation

[0097] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0098] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0099] The following reference Figures 1 to 29 This invention describes bearings, their manufacturing methods, and compressors provided according to some embodiments of the present invention.

[0100] In one embodiment according to this application, such as Figure 1 The diagram shows one of the flow charts of a bearing processing method according to an embodiment of the present invention. The bearing processing method includes the following steps S101 and S109:

[0101] S101: Machining of flange and hub sections;

[0102] S103: A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove;

[0103] S105: A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub;

[0104] S107: The mounting protrusion is installed in the mounting groove, and the mounting section is extended into the mounting hole so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0105] S109: Securely connect the hub to the flange.

[0106] The bearing machining method proposed in this application is applicable to machining bearings with annular grooves. Understandably, the annular groove is located inside the bearing. Machining a bearing with an annular groove as a single unit would result in greater machining difficulty, higher machining costs, and reduced machining accuracy. To reduce the machining difficulty of bearings, this application proposes a method for machining bearings in parts, thereby reducing the machining complexity. The specific machining method is as follows.

[0107] First, the flange and hub are machined separately. The flange can be made of steel of national standard size by laser cutting, turning, stamping or other methods. The hub can be made of metal bar or tube of national standard size by turning. The materials of the flange and hub can be the same or different.

[0108] Further processing is performed on the flange and hub portions after machining. A mounting groove is machined on the surface of the flange, and a mounting hole (through hole) is machined on the bottom wall of the mounting groove. To allow the hub portion to be mounted on the flange, a structure adapted to the mounting groove and mounting hole is machined on the hub portion. Specifically, a mounting section is machined at the end of the hub portion, and a mounting protrusion is machined on the surface of the hub portion. Along the extension direction of the hub portion, the mounting protrusion is adjacent to the mounting section, and the size of the mounting protrusion is larger than that of the mounting section. The mounting section adapts to the mounting hole of the flange, and the outer diameter of the mounting section is smaller than the inner diameter of the mounting hole. The mounting section and the mounting hole define an annular groove. The mounting protrusion adapts to the mounting groove of the flange, and the mounting protrusion can be installed within the mounting groove to limit the movement of the hub portion.

[0109] Specifically, during the process of installing the hub portion onto the flange portion, the mounting protrusion is first installed into the mounting groove. Simultaneously, the mounting section of the hub portion is inserted into the mounting hole of the flange portion. When the mounting protrusion is properly installed in the mounting groove, the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. Since the dimensions of the mounting protrusion and the mounting groove are compatible, the mounting groove can limit the mounting protrusion when it is installed, keeping it in an appropriate position. This, in turn, allows the mounting section to be held in an appropriate position relative to the mounting hole, so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. Understandably, the relative position of the hub portion and the flange portion is defined by the cooperation of the mounting protrusion and the mounting groove. While the hub portion and the flange portion are relatively fixed, the mounting section of the hub portion and the mounting hole of the flange portion define an annular groove. Compared to bearing machining methods that machine an annular groove inside the flange portion, this application reduces the machining difficulty of the annular groove and improves its accuracy by defining it through the mounting section and the mounting hole.

[0110] In one possible embodiment, the mounting groove is machined into a circular groove, and the cross-sectional shape of the mounting protrusion is circular.

[0111] Furthermore, after the mounting protrusion is installed in the mounting groove, the hub and flange are connected to keep the hub fixed relative to the flange, thus forming a single integral structure. Specifically, the hub and flange are connected by welding. This prevents the hub from moving relative to the flange, thereby preventing changes in the dimensions of the annular groove and ensuring that the dimensional accuracy of the annular groove meets the requirements.

[0112] By dividing the bearing into a flange and a hub, the hub and flange are machined separately first, and then connected to define the annular groove. This allows for the formation of an annular groove even when the bearing is made of steel, without the need for cutting the steel. Furthermore, it reduces the machining difficulty of the bearing, improves the precision of the annular groove, lowers the production cost, and increases the production efficiency.

[0113] Figure 2 A second schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown. The bearing processing method includes the following steps S201 to S213:

[0114] S201: Machining of flange and hub sections;

[0115] S203: A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove;

[0116] S205: A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub;

[0117] S207: A first limiting part is machined on the inner wall of the mounting groove;

[0118] S209: A second limiting part that is adapted to the first limiting part is machined on the outer wall of the mounting protrusion;

[0119] S211: Insert the mounting protrusion into the mounting groove, and at the same time make the second limiting part cooperate with the first limiting part to limit the mounting protrusion. At the same time, extend the mounting section into the mounting hole so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0120] S213: Securely connect the hub to the flange.

[0121] In this embodiment, the bearing processing method is further defined. Before installing the mounting protrusion into the mounting groove, a first limiting part is machined on the inner wall of the mounting groove, and a second limiting part adapted to the first limiting part is machined on the outer wall of the mounting protrusion. Understandably, if the mounting protrusion is not limited when installed in the mounting groove, it is easy for the mounting protrusion to rotate relative to the mounting groove under external force, which in turn causes the hub to easily rotate relative to the flange under external force. When welding the hub and flange, if the hub rotates relative to the flange, it is easy to cause incomplete weld joints, reduced weld quality, and decreased connection strength between the hub and flange. To avoid the above problems, this application machined a first limiting part and a second limiting part in the mounting groove and the mounting protrusion, respectively. The cooperation of the first and second limiting parts can limit the mounting protrusion to prevent it from rotating relative to the mounting groove, thereby preventing the hub from rotating relative to the flange.

[0122] Furthermore, after the first limiting part and the second limiting part are processed, when the mounting protrusion is installed in the mounting groove, the mounting protrusion is first inserted into the mounting groove. At the same time as the mounting protrusion is inserted, the second limiting part and the first limiting part cooperate with each other to limit the mounting protrusion through the cooperation between the two, so as to prevent the mounting protrusion from rotating relative to the mounting groove, and thus prevent the hub part from rotating relative to the flange part.

[0123] By machining a first limiting part on the inner wall of the mounting groove and a second limiting part that matches the first limiting part on the outer wall of the mounting protrusion, the mounting protrusion can be limited by the cooperation of the first and second limiting parts, preventing the mounting protrusion from rotating relative to the mounting groove, and thus preventing the hub from rotating relative to the flange. In this way, the hub can remain stable when connected to the flange, avoiding the possibility of incomplete welding between the flange and the hub, and improving the strength of the connection between the flange and the hub.

[0124] Figure 3 A third schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown. The bearing processing method includes the following steps S301 to S313:

[0125] S301: Machining of flange and hub sections;

[0126] S303: A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove;

[0127] S305: A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub;

[0128] S307: A first limiting part is machined on the inner wall of the mounting groove;

[0129] S309: A second limiting part that is adapted to the first limiting part is machined on the outer wall of the mounting protrusion;

[0130] S311: Insert the mounting protrusion into the mounting groove, and align the second limiting part with the first limiting part to limit the mounting protrusion. At the same time, extend the mounting section into the mounting hole so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0131] S313: Securely connect the hub to the flange.

[0132] In this embodiment, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be manufactured in various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible embodiment, the first and second limiting parts are machined as mutually adaptable planes. During the insertion of the mounting protrusion into the mounting groove, the second and first limiting parts are engaged, specifically, the second limiting part, which is machined into a plane, is aligned with the first limiting part, which is also machined into a plane. In this way, the mounting protrusion cannot rotate within the mounting groove, thereby limiting the wheel hub through the engagement of the first and second limiting parts, preventing the wheel hub from rotating relative to the flange.

[0133] Figure 4 A fourth schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown. The bearing processing method includes the following steps S401 to S413:

[0134] S401: Machining of flange and hub sections;

[0135] S403: A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove;

[0136] S405: A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub;

[0137] S407: A first limiting part is machined on the inner wall of the mounting groove;

[0138] S409: A second limiting part that is adapted to the first limiting part is machined on the outer wall of the mounting protrusion;

[0139] S411: Insert the mounting protrusion into the mounting groove, and simultaneously screw the second limiting part into the first limiting part to limit the mounting protrusion. At the same time, extend the mounting section into the mounting hole so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0140] S413: Securely connect the hub to the flange.

[0141] In this embodiment, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be machined into various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible embodiment, the first and second limiting parts are machined with mutually adaptable threads, allowing them to screw together. During the insertion of the mounting protrusion into the mounting groove, the second and first limiting parts are engaged; specifically, the threaded second limiting part is screwed onto the threaded first limiting part. As the second and first limiting parts are screwed together, the mounting protrusion is gradually inserted into the mounting groove until the second and first limiting parts are fully engaged, and the mounting protrusion is installed in the mounting groove. Thus, the mounting protrusion cannot rotate within the mounting groove, thereby limiting the wheel hub through the engagement of the first and second limiting parts, preventing the wheel hub from rotating relative to the flange.

[0142] Figure 5 Fifth schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown. The bearing processing method includes the following steps S501 to S513:

[0143] S501: Machining of flange and hub sections;

[0144] S503: A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove;

[0145] S505: A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub;

[0146] S507: A first limiting part is machined on the inner wall of the mounting groove;

[0147] S509: A second limiting part that is adapted to the first limiting part is machined on the outer wall of the mounting protrusion;

[0148] S511: Insert the mounting protrusion into the mounting groove, and align the second limiting part with the first limiting part so that the first limiting part and the second limiting part surround the positioning hole. Insert the positioning pin into the positioning hole to limit the mounting protrusion, and extend the mounting section into the mounting hole so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0149] S513: Securely connect the hub to the flange.

[0150] In this embodiment, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be machined into various structural forms, as long as they can be adapted to each other to limit the movement of the hub. In one possible embodiment, the first and second limiting parts are machined into grooves, so that when the first and second limiting parts are aligned, they can form a positioning hole. The bearing also includes a positioning pin adapted to the positioning hole. During the insertion of the mounting protrusion into the mounting groove, the second and first limiting parts are engaged, specifically, the second and first limiting parts are aligned so that they form a positioning hole, and then the positioning pin is inserted into the positioning hole to limit the movement of the mounting protrusion, preventing it from rotating relative to the mounting groove, thereby limiting the movement of the hub and preventing it from rotating relative to the flange.

[0151] In one possible embodiment, there are multiple first and second limiting parts, and the number of first and second limiting parts is the same. These multiple first and second limiting parts together form multiple positioning holes. There are also multiple positioning pins; by inserting these multiple positioning pins into their respective positioning holes, the positioning effect can be improved.

[0152] Figure 6 A schematic flowchart of a bearing processing method according to an embodiment of the present invention is shown in Figure 6. The bearing processing method includes the following steps S601 to S613:

[0153] S601: Machining of flange and hub sections;

[0154] S603: A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove;

[0155] S605: A mounting section is machined at the end of the hub, and a mounting protrusion is machined on the surface of the hub;

[0156] S607: A first limiting part is machined on the inner wall of the mounting groove;

[0157] S609: A second limiting part that is adapted to the first limiting part is machined on the outer wall of the mounting protrusion;

[0158] S611: Insert the mounting protrusion into the mounting groove, and simultaneously insert the second limiting part and the first limiting part into each other to limit the mounting protrusion. At the same time, extend the mounting section into the mounting hole so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove.

[0159] S613: Securely connect the hub to the flange.

[0160] In this embodiment, the step of engaging the second limiting part with the first limiting part is specifically defined. The first and second limiting parts can be manufactured in various structural forms, as long as they can be adapted to each other to limit the wheel hub. In one possible technical solution, one of the first and second limiting parts is manufactured as a protrusion, and the other as a groove. The protrusion and the groove are adapted to each other. Before inserting the mounting protrusion into the mounting groove, the first and second limiting parts are aligned. Then, during the insertion of the mounting protrusion into the mounting groove, the first and second limiting parts interlock, their concave and convex fit together to limit the mounting protrusion, preventing it from rotating relative to the mounting groove, thereby limiting the wheel hub and preventing it from rotating relative to the flange.

[0161] like Figure 7 , Figure 8 , Figure 18 , Figure 19 , Figure 24 and Figure 25 As shown, a second aspect of the present invention also provides a bearing 100, comprising: a flange portion 110, the surface of which is provided with a mounting groove 111, and the bottom wall of the mounting groove 111 is provided with a mounting hole 112; a hub portion 120 connected to the flange portion 110, the hub portion 120 having a mounting protrusion 121 adapted to the mounting groove 111, and the end of the hub portion 120 having a mounting section 122; the mounting protrusion 121 is mounted in the mounting groove 111, the mounting groove 111 is used to limit the hub portion 120, the mounting section 122 extends into the mounting hole 112, and the outer wall of the mounting section 122 and the inner wall of the mounting hole 112 define an annular groove 113.

[0162] The bearing 100 proposed in this application includes a flange portion 110 and a hub portion 120. The flange portion 110 has a mounting groove 111 on its surface and a mounting hole 112 on its bottom wall. The hub portion 120 has a mounting protrusion 121 adapted to the mounting groove 111, and a mounting section 122 at its end. By connecting the hub portion 120 to the flange portion 110, the mounting section 122 can be inserted into the mounting hole 112. The outer wall of the mounting section 122 and the inner wall of the mounting hole 112 define an annular groove 113. During the connection of the hub portion 120 to the flange portion 110, the mounting protrusion 121 is inserted into the mounting groove 111 to limit the position of the hub portion 120, ensuring that the mounting section 122 is in the correct position and that the dimensional accuracy of the annular groove 113 meets the requirements.

[0163] Understandably, the annular groove 113 is located inside the bearing 100. If the bearing 100 with the annular groove 113 is machined as a single piece, it will result in greater machining difficulty, higher machining costs, and lower machining accuracy. The bearing 100 proposed in this application is configured as a split structure including a flange portion 110 and a hub portion 120. The flange portion 110 defines the annular groove 113 while connecting to the hub portion 120. This reduces the machining difficulty of the bearing 100 and ensures the dimensional accuracy of the annular groove 113.

[0164] Specifically, during the machining of bearing 100, flange portion 110 and hub portion 120 are machined separately first. Then, mounting groove 111 is machined on the surface of flange portion 110, and mounting hole 112 is machined on the bottom wall of mounting groove 111. Mounting section 122 is machined at the end of hub portion 120, and mounting protrusion 121 is machined on the surface of hub portion 120. Mounting hole 112 is a through hole, and mounting section 122 is adapted to mounting hole 112. The cross-sectional dimension of mounting section 122 is smaller than that of mounting hole 112. When mounting section 122 is inserted into mounting hole 112, there is a gap between the outer wall of mounting section 122 and the inner wall of mounting hole 112, thus defining an annular groove 113. The mounting protrusion 121 is adapted to the mounting groove 111. When the hub portion 120 is connected to the flange portion 110, the mounting protrusion 121 is inserted into the mounting groove 111. Thus, the mounting groove 111 limits the mounting protrusion 121, thereby limiting the hub portion 120 and ensuring it remains in the correct position relative to the flange portion 110. This maintains the correct relative position between the mounting section 122 of the hub portion 120 and the mounting hole 112 of the flange portion 110, ensuring the shape and size of the annular groove 113 meet the requirements. Furthermore, after the mounting protrusion 121 is installed in the mounting groove 111, the hub portion 120 and the flange portion 110 can be fixedly connected by welding to prevent separation of the hub portion 120 and the flange portion 110.

[0165] By dividing the bearing 100 into two parts, a flange portion 110 and a hub portion 120, the hub portion 120 and the flange portion 110 are machined separately first, and then the hub portion 120 and the flange portion 110 are connected to define the annular groove 113. Even if the bearing 100 is made of steel, the annular groove 113 can be formed in the bearing 100 without cutting the steel material with a cutting tool. This reduces the machining difficulty of the bearing 100, improves the precision of the annular groove 113, reduces the production cost of the bearing 100, and improves the production efficiency of the bearing 100.

[0166] In some embodiments, optionally, such as Figure 7 , Figure 8 and Figure 11As shown, the flange portion 110 has a first limiting portion 114, which is disposed on the groove wall of the mounting groove 111, and the hub portion 120 has a second limiting portion 123, which is adapted to the first limiting portion 114 and is disposed on the wall surface of the mounting protrusion 121.

[0167] In this embodiment, to prevent the hub portion 120 from moving relative to the flange portion 110, a first limiting portion 114 is provided in the flange portion 110, and a second limiting portion 123 adapted to the first limiting portion 114 is provided in the hub portion 120. The hub portion 120 is limited by the cooperation of the first limiting portion 114 and the second limiting portion 123. Specifically, the first limiting portion 114 is provided on the groove wall of the mounting groove 111, and the second limiting portion 123 is provided on the wall surface of the mounting protrusion 121. During the process of installing the mounting protrusion 121 into the mounting groove 111, the second limiting portion 123 and the first limiting portion 114 cooperate with each other to limit the mounting protrusion 121. In this way, the mounting protrusion 121 is prevented from rotating relative to the mounting groove 111, thereby preventing the hub portion 120 from rotating relative to the flange portion 110.

[0168] By providing a first limiting part 114 on the groove wall of the mounting groove 111 and a second limiting part 123 adapted to the first limiting part 114 on the outer wall of the mounting protrusion 121, the mounting protrusion 121 can be limited by the cooperation of the first limiting part 114 and the second limiting part 123, preventing the mounting protrusion 121 from rotating relative to the mounting groove 111, thereby preventing the hub part 120 from rotating relative to the flange part 110.

[0169] In some embodiments, optionally, such as Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 As shown, the first limiting part 114 and the second limiting part 123 are constructed as mutually compatible planes.

[0170] In this embodiment, the structures of the first limiting portion 114 and the second limiting portion 123 are defined. The first limiting portion 114 and the second limiting portion 123 can be processed into various structural forms, as long as they can be adapted to each other to limit the wheel hub portion 120. In one possible embodiment, the first limiting portion 114 and the second limiting portion 123 are constructed as mutually adaptable planes.

[0171] Specifically, during the process of inserting the mounting protrusion 121 into the mounting groove 111, the operator can first align the first limiting part 114 and the second limiting part 123. Since both the first limiting part 114 and the second limiting part 123 are constructed as planes, when the mounting protrusion 121 is inserted into the mounting groove 111, the cooperation of the first limiting part 114 and the second limiting part 123 can prevent the mounting protrusion 121 from rotating relative to the mounting groove 111, thereby preventing the hub part 120 from rotating relative to the flange part 110.

[0172] In some embodiments, optionally, such as Figure 17 As shown, the first limiting part 114 and the second limiting part 123 are constructed to be mutually compatible threads.

[0173] In this embodiment, the structures of the first limiting portion 114 and the second limiting portion 123 are defined. The first limiting portion 114 and the second limiting portion 123 can be processed into various structural forms, as long as they can be adapted to each other to limit the hub portion 120. In one possible embodiment, the first limiting portion 114 and the second limiting portion 123 are constructed as mutually adaptable threads, and the first limiting portion 114 and the second limiting portion 123 can be screwed together.

[0174] Specifically, during the process of installing the mounting protrusion 121 into the mounting groove 111, the operator can first screw the threaded second limiting part 123 and the threaded first limiting part 114 together. As the second limiting part 123 and the first limiting part 114 are screwed together, the mounting protrusion 121 is gradually inserted into the mounting groove 111 until the second limiting part 123 and the first limiting part 114 are fully engaged, and the mounting protrusion 121 is installed in the mounting groove 111. Because the second limiting part 123 and the first limiting part 114 are connected by a threaded connection, the mounting protrusion 121 cannot rotate relative to the mounting groove 111, thereby preventing the hub part 120 from rotating relative to the flange part 110.

[0175] In some embodiments, optionally, such as Figure 24 , Figure 25 , Figure 26 , Figure 27 , Figure 28 and Figure 29 As shown, the bearing 100 further includes at least one positioning post 130, the first limiting part 114 and the second limiting part 123 are configured as grooves, the first limiting part 114 and the corresponding second limiting part 123 surround to form a positioning hole, and the positioning post 130 is inserted into the corresponding positioning hole.

[0176] In this embodiment, the structures of the first limiting part 114 and the second limiting part 123 are defined. The first limiting part 114 and the second limiting part 123 can be processed into various structural forms, as long as they can be adapted to each other to limit the hub part 120. In one possible embodiment, the first limiting part 114 and the second limiting part 123 are constructed as mutually adaptable grooves, and when the first limiting part 114 and the second limiting part 123 are aligned, the first limiting part 114 and the second limiting part 123 enclose a positioning hole. The bearing 100 also includes a positioning pin 130 adapted to the positioning hole. By inserting the positioning pin 130 into the positioning hole, the hub part 120 can be limited.

[0177] Specifically, during the process of installing the mounting protrusion 121 into the mounting groove 111, the operator can first align the second limiting part 123, which is configured as a groove, with the first limiting part 114, which is configured as a groove, and then insert the mounting protrusion 121 into the mounting groove 111. When the mounting protrusion 121 is installed in place in the mounting groove 111, the second limiting part 123 and the first limiting part 114 together form a positioning hole. The bearing 100 also includes a positioning pin 130, which is inserted into the positioning hole. In this way, the mounting protrusion 121 can be limited by the positioning pin 130, preventing the mounting protrusion 121 from rotating relative to the mounting groove 111, thereby achieving the positioning of the hub portion 120 and preventing the hub portion 120 from rotating relative to the flange portion 110.

[0178] In the above embodiments, the number of first limiting portions 114 and second limiting portions 123 is further multiplied, with the multiple first limiting portions 114 being evenly distributed along the circumference of the mounting groove 111 and the multiple second limiting portions 123 being evenly distributed along the circumference of the mounting protrusion 121.

[0179] In this embodiment, the number of the first limiting portion 114 and the second limiting portion 123 is limited. When the first limiting portion 114 and the second limiting portion 123 are constructed as grooves, there can be multiple first limiting portions 114 and second limiting portions 123. The number of first limiting portions 114 and the number of second limiting portions 123 are the same, and multiple first limiting portions 114 and multiple second limiting portions 123 together form multiple positioning holes. There are also multiple positioning pins 130, and the number of positioning pins 130 is the same as the number of first limiting portions 114 and second limiting portions 123.

[0180] Furthermore, multiple first limiting parts 114 are evenly distributed along the circumference of the mounting groove 111, and multiple second limiting parts 123 are evenly distributed along the circumference of the mounting protrusion 121, thereby improving the positioning effect of the positioning post 130.

[0181] In some embodiments, optionally, such as Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 19 , Figure 20 , Figure 21 , Figure 22 and Figure 23 As shown, one of the first limiting portion 114 and the second limiting portion 123 is constructed as a protrusion, and the other is constructed as a groove.

[0182] In this embodiment, the structures of the first limiting part 114 and the second limiting part 123 are defined. The first limiting part 114 and the second limiting part 123 can be processed into various structural forms, as long as they can be adapted to each other to limit the hub part 120. In one possible embodiment, one of the first limiting part 114 and the second limiting part 123 is constructed as a protrusion, and the other is constructed as a groove. The protrusion and the groove are adapted to each other. Before the mounting protrusion 121 is inserted into the mounting groove 111, the first limiting part 114 and the second limiting part 123 are aligned. Then, during the process of inserting the mounting protrusion 121 into the mounting groove 111, the first limiting part 114 and the second limiting part 123 are interlocked, and the two fit together to limit the mounting protrusion 121, preventing the mounting protrusion 121 from rotating relative to the mounting groove 111, thereby limiting the hub part 120 and preventing the hub part 120 from rotating relative to the flange part 110.

[0183] In some embodiments, the cross-sectional dimensions of the mounting groove 111 are optionally the same as the cross-sectional dimensions of the mounting protrusion 121.

[0184] In this embodiment, the cross-sectional dimensions of the mounting groove 111 and the mounting protrusion 121 are defined. Specifically, the cross-sectional dimensions of the mounting groove 111 are the same as those of the mounting protrusion 121. Understandably, if the cross-sectional dimension of the mounting protrusion 121 is smaller than that of the mounting groove 111, when the mounting protrusion 121 is installed in the mounting groove 111, a gap will exist between the outer wall of the mounting protrusion 121 and the groove wall of the mounting groove 111, making it easy for the mounting protrusion 121 to rotate relative to the mounting groove 111. By making the cross-sectional dimensions of the mounting protrusion 121 and the mounting groove 111 the same, the outer wall of the mounting protrusion 121 can fit against the inner wall of the mounting groove 111, making it difficult for the mounting protrusion 121 to rotate relative to the mounting groove 111, thus allowing the mounting groove 111 to provide a certain limiting effect on the mounting protrusion 121. Furthermore, by making the cross-sectional dimensions of the mounting protrusion 121 and the mounting groove 111 the same, external impurities can be prevented from entering the gap between the mounting protrusion 121 and the mounting groove 111, thereby reducing the damage of external impurities to the bearing 100 and extending the service life of the bearing 100.

[0185] In some embodiments, the groove depth of the mounting groove 111 may be less than 20% of the thickness of the flange portion 110.

[0186] In this embodiment, the relationship between the depth of the mounting groove 111 and the thickness of the flange portion 110 is defined. Specifically, the depth of the mounting groove 111 is less than 20% of the thickness of the flange portion 110. Understandably, if the depth of the mounting groove 111 is too large, it can easily lead to thin walls in the flange portion 110, thereby reducing its strength. To improve the strength of the flange portion 110, this application sets the depth of the mounting groove 111 to be less than 20% of the thickness of the flange portion 110. This ensures that the strength of the flange portion 110 meets the usage requirements, prevents breakage of the flange portion 110, and extends the service life of the bearing 100.

[0187] In some embodiments, the wall thickness of the mounting section 122 may be greater than or equal to 0.75 mm.

[0188] In this embodiment, the wall thickness of the mounting section 122 is limited. Specifically, to reduce the weight of the bearing 100, the mounting section 122 is constructed as a tube, and the wall thickness of the mounting section 122 is greater than or equal to 0.75 mm. In this way, the strength of the mounting section 122 can be ensured to meet the usage requirements, while the overall weight of the bearing 100 can be reduced, which is beneficial to the lightweight design of the product.

[0189] In some embodiments, the length of the mounting segment 122 may be greater than or equal to 5 mm.

[0190] In this embodiment, the length of the mounting section 122 is limited. Specifically, the length of the mounting section 122 is greater than or equal to 5 mm. Understandably, when the hub portion 120 shifts relative to the flange portion 110, the mounting section 122 extends into the mounting hole 112, thereby limiting the hub portion 120 through the cooperation between the mounting section 122 and the mounting hole 112. Therefore, by limiting the length of the mounting section 122 to greater than or equal to 5 mm, the limiting capability of the mounting section 122 can be improved, and it can be ensured that the annular groove 113 defined by the mounting section 122 and the mounting hole 112 meets the usage and strength requirements of the bearing 100.

[0191] In some embodiments, the cross-sectional width of the annular groove 113 may be greater than or equal to 0.25 mm.

[0192] In this embodiment, the cross-sectional width of the annular groove 113 is limited. Specifically, the cross-sectional width of the annular groove 113 is greater than or equal to 0.25 mm. This ensures that the dimensions of the annular groove 113 meet the usage requirements of the bearing 100.

[0193] In some embodiments, the material of the hub portion 120 is weldable to the material of the flange portion 110.

[0194] In this embodiment, the materials of the hub portion 120 and the flange portion 110 are defined. Specifically, the materials of the hub portion 120 and the flange portion 110 are weldable, allowing the operator to connect the hub portion 120 and the flange portion 110 into a single structure via welding. This prevents the hub portion 120 from moving relative to the flange portion 110, thereby preventing changes in the dimensions of the annular groove 113 and ensuring that the dimensional accuracy of the annular groove 113 meets the requirements.

[0195] In one possible embodiment, the bearing 100 includes a flange portion 110 and a hub portion 120. The flange portion 110 is made of steel material of national standard size and is processed by laser cutting, turning, stamping or other methods. The hub portion 120 is made of metal bar or tube material of national standard size and is machined by turning. The material of the flange portion 110 and the hub portion 120 can be the same or different, as long as they have good weldability.

[0196] like Figure 7 As shown, to ensure the quality of the connected annular oil groove (i.e., annular groove 113), a recess (i.e., mounting groove 111) is arranged on the upper surface of the flange 110. The depth H1 of the recess should be controlled within 20% of the thickness of the flange 110. Similarly, a boss (i.e., mounting boss 121) with the same structure exists at the bottom of the hub 120. The cross-sectional dimensions of the boss should be exactly the same as the cross-sectional dimensions of the recess of the flange 110. This ensures that the hub 120 and the flange 110 can be positioned and limited during the splicing process, thereby ensuring the splicing quality.

[0197] like Figure 7 As shown, the dimensions of the annular oil groove can be formed by the D2 dimension (i.e., the outer diameter of the mounting section 122) and the H2 dimension (i.e., the length of the mounting section 122) of the hub portion 120 and the D3 dimension (i.e., the inner diameter of the mounting hole 112) and the H1 dimension (i.e., the depth of the mounting groove 111) of the flange portion 110. To ensure the structural strength of the annular oil groove, D2-D1 should not be less than 1.5mm (D1 is the diameter of the inner hole in the mounting section 122), D3-D2 should not be less than 0.5mm, and H2 should not be less than 5mm.

[0198] like Figure 13 , Figure 14 , Figure 15 , Figure 16 , Figure 19 , Figure 20 , Figure 21 , Figure 22 and Figure 23 As shown, in one possible embodiment, the focus of this embodiment is that the positioning method of the upper surface of the hub portion 120 and the flange portion 110 can adopt other concave-convex type locking fits. The number of concave-convex type locking fit structures is not limited, such as... Figure 14 , Figure 15 and Figure 21 As shown.

[0199] like Figure 17 As shown, in one possible embodiment, the focus of this embodiment is that the positioning method of the upper surface of the hub portion 120 and the flange portion 110 can be a screw engagement method. The screw engagement structure can be, but is not limited to, a threaded structure, and the engagement depth should be maintained between 0.5 times and 10 times the thread pitch.

[0200] A third aspect of the invention also provides a compressor including the bearing 100 proposed in the second aspect of the invention.

[0201] The compressor provided in the third aspect of the present invention, having the bearing 100 proposed in the second aspect of the present invention, has all the beneficial effects of the bearing 100.

[0202] In this invention, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0203] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0204] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A bearing processing method, characterized in that, The bearing processing method includes: Machining of flange and hub sections; A mounting groove is machined on the surface of the flange, and a mounting hole is machined on the bottom wall of the mounting groove; A mounting section is machined at the end of the hub portion, and a mounting protrusion is machined on the surface of the hub portion; The mounting protrusion is installed in the mounting groove, and the mounting section is extended into the mounting hole. The mounting groove is used to limit the hub portion so that the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. The hub portion is fixedly connected to the flange portion; Before installing the mounting protrusion into the mounting groove, the bearing processing method further includes: A first limiting part is machined on the inner wall of the mounting groove; A second limiting part that is adapted to the first limiting part is machined on the outer wall of the mounting protrusion; The step of installing the mounting protrusion into the mounting groove specifically includes: The mounting protrusion is inserted into the mounting groove, and the second limiting part cooperates with the first limiting part to limit the mounting protrusion.

2. The bearing processing method according to claim 1, characterized in that, The first limiting part and the second limiting part are processed into mutually adaptable planes, and the step of making the second limiting part cooperate with the first limiting part specifically includes: Align the second limiting part with the first limiting part.

3. The bearing processing method according to claim 1, characterized in that, The first limiting part and the second limiting part are machined with mutually compatible threads, and the process of making the second limiting part cooperate with the first limiting part specifically includes: The second limiting part is screwed onto the first limiting part.

4. The bearing processing method according to claim 1, characterized in that, The first limiting portion and the second limiting portion are machined into grooves, and the step of making the second limiting portion cooperate with the first limiting portion specifically includes: Align the second limiting part with the first limiting part so that the first limiting part and the second limiting part together form a positioning hole; Insert the positioning pin into the positioning hole.

5. The bearing processing method according to claim 1, characterized in that, One of the first limiting portion and the second limiting portion is machined as a protrusion, and the other is machined as a groove. The process of making the second limiting portion cooperate with the first limiting portion specifically includes: The first limiting part and the second limiting part are inserted into each other.

6. A bearing, characterized in that, include: The flange portion has a mounting groove on its surface and a mounting hole on the bottom wall of the mounting groove. The hub portion is connected to the flange portion, the hub portion has a mounting protrusion adapted to the mounting groove, and the end of the hub portion has a mounting section; The mounting protrusion is installed in the mounting groove, which is used to limit the position of the hub portion. The mounting section extends into the mounting hole, and the outer wall of the mounting section and the inner wall of the mounting hole define an annular groove. The flange portion has a first limiting portion disposed on the groove wall of the mounting groove, and the hub portion has a second limiting portion adapted to the first limiting portion, which is disposed on the wall surface of the mounting protrusion.

7. The bearing according to claim 6, characterized in that, The first limiting part and the second limiting part are constructed as mutually compatible planes.

8. The bearing according to claim 6, characterized in that, The first limiting part and the second limiting part are constructed to be mutually compatible threads.

9. The bearing according to claim 6, characterized in that, Also includes: At least one positioning post, wherein the first limiting part and the second limiting part are configured as grooves, the first limiting part and the corresponding second limiting part together form a positioning hole, and the positioning post is inserted into the corresponding positioning hole.

10. The bearing according to claim 6, characterized in that, There are multiple first limiting parts and multiple second limiting parts. The multiple first limiting parts are evenly distributed along the circumference of the mounting groove, and the multiple second limiting parts are evenly distributed along the circumference of the mounting protrusion.

11. The bearing according to claim 6, characterized in that, One of the first limiting portion and the second limiting portion is constructed as a protrusion, and the other is constructed as a groove.

12. The bearing according to any one of claims 6 to 11, characterized in that, The cross-sectional dimensions of the mounting groove are the same as those of the mounting protrusion.

13. The bearing according to any one of claims 6 to 11, characterized in that, The depth of the mounting groove is less than 20% of the thickness of the flange portion.

14. The bearing according to any one of claims 6 to 11, characterized in that, The wall thickness of the mounting section is greater than or equal to 0.75 mm.

15. The bearing according to any one of claims 6 to 11, characterized in that, The length of the installation section is greater than or equal to 5 mm.

16. The bearing according to any one of claims 6 to 11, characterized in that, The cross-sectional width of the annular groove is greater than or equal to 0.25 mm.

17. The bearing according to any one of claims 6 to 11, characterized in that, The material of the hub portion and the material of the flange portion are weldable.

18. A compressor, characterized in that, include: The bearing as described in any one of claims 6 to 17.

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