Split water-lubricated bearing and processing method of internal stop copper bar thereof

Abstract

The present application relates to the technical field of machining, in particular to a split water-lubricated bearing and a processing method of the internal stop copper bar thereof. The bearing comprises a split bearing upper half bushing, a split bearing lower half bushing, a split bearing upper half bearing bush and a split bearing lower half bearing bush. The stop copper bar is tightly arranged between the split bearing upper half bearing bush and the split bearing lower half bearing bush. The split bearing upper half bushing has a third inclined bottom surface, and the split bearing lower half bushing has a third inclined top surface. The third inclined bottom surface and the third inclined top surface are adapted to each other. The third inclined bottom surface is upwardly inclined from the front end to the rear end. The included angle between the third inclined bottom surface and the horizontal plane is alpha. The bearing has small disassembly work, high assembly precision and good bearing structure stability.

Description

Technical Field

[0001] This invention relates to the field of machining technology, specifically to a split water-lubricated bearing and a method for machining its internal retaining copper strip. Background Technology

[0002] Ship propeller shafting systems all have bearings that provide load-bearing and lubrication, protecting the shaft's rotational motion. After long-term operation, wear is inevitable on the bearing shells within the bearing bores. Traditional bearings are generally of a single, undivided structure, and the corresponding bearing shells are also a single piece, with an interference fit to the bushing. Replacing the bearing shells of this type of bearing is extremely difficult, requiring the entire shaft to be removed from the bushing. Because the bearing shell is an integral piece with the bushing and difficult to disassemble, it needs to be removed using a machine tool. The workload for disassembling the shaft and replacing the bearing shell is very large, the replacement time is long, and it affects the normal operation of the ship.

[0003] To address the aforementioned technical issues, a modular bearing has emerged in this field, employing a uniformly split upper and lower halves structure, used in conjunction with two split upper and lower bearing bushes. When replacing the bearing bushes, this modular bearing does not require disassembling the shaft system; instead, the upper and lower halves of the bearing are pushed out of their bearing positions and then moved separately to replace the bearing bushes. This structure requires less shaft disassembly work, but suffers from low assembly precision, and the bearing bushes are prone to axial movement, resulting in poor bearing structural stability. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a split-type water-lubricated bearing and a method for processing its internal retaining copper strip, which reduces the amount of disassembly work, increases assembly precision, and improves the structural stability of the bearing.

[0005] This invention provides a split-type water-lubricated bearing, comprising a spliced ​​upper bearing bushing, a spliced ​​lower bearing bushing, a spliced ​​upper bearing shell, and a spliced ​​lower bearing shell. The spliced ​​upper and lower bearing bushings are assembled together to form a bearing bushing. The spliced ​​upper and lower bearing shells are disposed opposite each other within the bearing bushing. A retaining copper strip is tightly disposed between the spliced ​​upper and lower bearing shells. The spliced ​​upper bearing bushing has a third inclined bottom surface, and the spliced ​​lower bearing bushing has a third inclined top surface. The third inclined bottom surface and the third inclined top surface are adapted to each other. The third inclined bottom surface is an upwardly inclined surface from the front end to the rear end, and the angle between the third inclined bottom surface and the horizontal plane is α.

[0006] Preferably, the stop copper strip includes a first upper bearing stop copper strip, a second upper bearing stop copper strip, a first lower bearing stop copper strip, and a second lower bearing stop copper strip;

[0007] The first upper bearing stop copper strip and the first lower bearing stop copper strip are adapted to each other and are disposed in the gap on one side of the upper half bearing and the lower half bearing of the spliced ​​bearing.

[0008] The second upper bearing stop copper strip and the second lower bearing stop copper strip are adapted to each other and are set in the gap on the other side of the upper half bearing and the lower half bearing of the spliced ​​bearing;

[0009] The first upper bearing stop copper strip has a first inclined bottom surface, and the first lower bearing stop copper strip has a first inclined top surface. The first inclined bottom surface and the first inclined top surface are adapted to each other. The first inclined bottom surface is a surface that slopes upward from the front end to the rear end. The angle between the first inclined bottom surface and the horizontal plane is α.

[0010] The second upper bearing stop copper strip has a second inclined bottom surface, and the second lower bearing stop copper strip has a second inclined top surface. The second inclined bottom surface and the second inclined top surface are adapted to each other. The second inclined bottom surface is a surface that slopes upward from the front end to the rear end. The angle between the second inclined bottom surface and the horizontal plane is α.

[0011] Preferably, the opposing surfaces of the upper and lower half of the spliced ​​bearing bush are radially inclined planes. The radially inclined plane is a surface that slopes from the inner side of the bush to the outer side of the bush. The angle between the radially inclined plane and the vertical plane is β. The top and bottom surfaces of the stop copper strip are configured to cooperate with the radially inclined plane.

[0012] Preferably, the inner and outer surfaces of the stop copper strip are both arc-shaped, the inner surface radius R1 of the stop copper strip is larger than the inner hole radius of the bearing bush, the outer surface radius R2 of the stop copper strip is adapted to the inner hole of the bearing, and the stop copper strip is fixedly connected to the bearing by copper strip fixing bolts that penetrate the inner and outer surfaces of the copper strip.

[0013] This invention provides a method for processing a stop copper strip, used to process the stop copper strip as described above, the method comprising:

[0014] The copper strip is assembled onto the tooling for machining the stop copper strip blank, and the arc-shaped inner and outer sides of the stop copper strip are machined using a lathe to form the stop copper strip blank.

[0015] The stop copper strip blank is fixed on the stop copper strip processing fixture, and the stop copper strip is processed from one side of the stop copper strip blank using a lathe to adapt to the top or bottom surface of the radial inclined plane of the bearing bush.

[0016] Using a lathe, any one of the following can be machined from the other side of the stop copper strip blank: a first inclined bottom surface, a first inclined top surface, a second inclined bottom surface, and a second inclined top surface, to form a stop copper strip.

[0017] Preferably, the tooling for processing the stop copper strip blank includes a cylindrical tooling body. Several pairs of radially penetrating copper strip embedding grooves are evenly distributed on the cylindrical wall of the tooling body. The length direction of the copper strip embedding grooves is consistent with the axial direction of the tooling body. Each pair of copper strip embedding grooves is symmetrically distributed along the axial center line of the tooling body, and the axial center sections of each pair of copper strip embedding grooves are parallel to each other and distributed on both sides of the axial center line of the tooling body.

[0018] Preferably, the copper strip embedding groove is a stepped groove, which includes a first rectangular groove at the bottom and a second rectangular groove at the top, wherein the width of the first rectangular groove is smaller than the width of the second rectangular groove.

[0019] Preferably, when assembling the copper strip onto the tooling for machining the stop copper strip blank, the bottom of the copper strip protrudes from the inner wall of the tooling body, and the top of the copper strip protrudes from the outer wall of the tooling body, so that the assembly depth of the copper strip meets the machining allowance of the arc-shaped inner and outer sides of the stop copper strip.

[0020] Preferably, the stop copper strip processing fixture includes a T-shaped base and a T-shaped top seat. The T-shaped base has a strip-shaped protrusion in the middle. The top surface of the protrusion is an arc-shaped surface that matches the inner side of the stop copper strip blank. The T-shaped top seat is detachably mounted on either side of the protrusion. The T-shaped top seat is provided with a horizontal feed adjustment component.

[0021] Preferably, the T-shaped top seat is fixed to either side of the protrusion by bolts, and the T-shaped top seat is provided with a horizontal feed adjustment bolt.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. Based on the traditional evenly split spliced ​​bearing, this design adopts an unequal division design, giving the upper bushing a third inclined bottom surface and the lower bushing a third inclined top surface. The third inclined bottom surface and the third inclined top surface are mutually compatible, with the bottom surface sloping upwards from the front to the rear. When replacing the bearing shell, this spliced ​​bearing can be used without disassembling the shaft system. Instead, the upper and lower parts of the bearing are pushed out of their bearing positions and then removed separately to replace the bearing shell. Because the contact surfaces of the split upper and lower bushings are axially inclined planes, during bearing assembly, pushing the flange inwards tightens the fit, ensuring the assembly accuracy of the upper and lower parts. When removing the upper and lower parts, pushing them back past the tightening point makes removal very easy, ensuring disassembly efficiency. Furthermore, a stop copper strip is installed between the upper and lower bearing shells to further prevent axial movement of the bearing shells, further ensuring the structural stability of the bearing.

[0024] 2. The stop copper strip also adopts a split design, with the upper and lower parts respectively assembled into the gaps between the bearing bushes on both sides. The contact surfaces of the upper and lower stop copper strips also adopt axial inclined planes, thereby further adapting to the bushing structure with unequal upper and lower sections, ensuring the assembly accuracy of the bearing structure.

[0025] 3. The surface of the bearing bush that contacts the retaining copper strip is made of radially inclined plane, which prevents the radial rotation of the bearing bush and further improves the structural stability of the bearing.

[0026] 4. The inner and outer surfaces of the stop copper strip are curved, with the top and bottom surfaces being axial and radial inclined planes, respectively. This stop copper strip has an irregular shape, making it difficult to process. This method simplifies the irregular structure by first processing the inner and outer curved surfaces, and then processing the inclined top and bottom surfaces at both ends, reducing the processing difficulty.

[0027] 5. A cylindrical copper stop bar blank is used to machine a fixture that fits into the copper bar embedding groove. Each pair of copper bar embedding grooves is symmetrically distributed along the axial centerline of the fixture body, and the axial center sections of each pair of copper bar embedding grooves are parallel to each other and distributed on both sides of the axial centerline of the fixture body. Therefore, after the copper bars are assembled, the inner and outer arc surfaces of the stop copper bars can be directly machined on a lathe, and multiple stop copper bars can be machined simultaneously, resulting in high processing efficiency.

[0028] 6. The fixture for machining the stop copper strip includes a T-shaped base and a T-shaped top seat. The T-shaped base has a strip-shaped protrusion in the middle, and the top surface of the protrusion is an arc-shaped surface adapted to the inner surface of the stop copper strip blank. The T-shaped top seat can be detachably mounted on either side of the protrusion, and a horizontal feed adjustment component is provided on the T-shaped top seat. This structure allows for the machining of both the bottom and top surfaces of the stop copper strip by moving the T-shaped top seat from one side to the other without changing the fixture. It has high machining efficiency and good versatility and adaptability. The horizontal feed adjustment bolt is used to limit the movement of the stop copper strip, which is convenient to adjust and simple in structure. Combined with the arc-shaped top surface of the protrusion, it effectively prevents displacement of the stop copper strip during machining, ensuring machining accuracy. Attached Figure Description

[0029] Figure 1 This is a front view of the bearing of the present invention;

[0030] Figure 2 for Figure 1 Sectional view along axis AA;

[0031] Figure 3 for Figure 2 BB-direction sectional view;

[0032] Figure 4 This is a front view of the stop copper strip of the present invention;

[0033] Figure 5 for Figure 4 CC-direction sectional view;

[0034] Figure 6 This is a front view of the tooling for machining the copper bar blank for stopping the invention.

[0035] Figure 7 for Figure 6 DD section view;

[0036] Figure 8 for Figure 6 DD-direction cross-sectional view (including copper strip);

[0037] Figure 9 This is a front view of the tooling for machining the stop copper strip according to the present invention;

[0038] Figure 10 for Figure 9 EE-directed sectional view;

[0039] Figure 11 This is a front view of the tooling (machined bottom surface) for machining the stop copper strip of the present invention;

[0040] Figure 12 for Figure 11 FF section view;

[0041] Figure 13 This is a front view of the tooling for machining the stop copper strip (machining the top surface) according to the present invention;

[0042] Figure 14 For the present invention Figure 13 GG sectional view.

[0043] In the diagram: 1. Upper bushing of the spliced ​​bearing; 2. Lower bushing of the spliced ​​bearing; 3. Upper bearing shell of the spliced ​​bearing; 4. Lower bearing shell of the spliced ​​bearing; 5. First upper bearing shell retaining copper strip; 5-1. Bottom surface of the first upper bearing shell retaining copper strip; 5-2. Top surface of the first upper bearing shell retaining copper strip; 5-3. Threaded hole of the retaining copper strip; 6. Second upper bearing shell retaining copper strip; 7. First lower bearing shell retaining copper strip; 8. Second lower bearing shell retaining copper strip; 9. Copper strip fixing bolt; 10. Tooling. Body, 10-1, Copper strip embedding groove, 10-2, First rectangular groove, 10-3, Second rectangular groove, 10-4, Axial center section, 10-5, Spot welding position, 10-6, Copper strip, 11, T-shaped base, 11-1, First bolt hole, 11-2, Second bolt hole, 12, T-shaped top seat, 13, Horizontal feed adjustment bolt, 14, First fixing bolt, 15, Spring washer, 16, Second fixing bolt, 17, First copper plate, 18, Second copper plate. Detailed Implementation

[0044] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0046] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0048] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. "A plurality" means "two or more."

[0049] Example 1

[0050] Figures 1-3 A schematic diagram of a split water-lubricated bearing according to this application is shown. For ease of explanation, only the parts relevant to this embodiment are shown, and are described in detail below:

[0051] A split-type water-lubricated bearing includes a spliced ​​upper bearing bushing 1, a spliced ​​lower bearing bushing 2, a spliced ​​upper bearing shell 3, and a spliced ​​lower bearing shell 4. The spliced ​​upper bearing bushing 1 and the spliced ​​lower bearing bushing 2 are spliced ​​together to form a bearing bushing. The spliced ​​upper bearing shell 3 and the spliced ​​lower bearing shell 4 are disposed opposite each other within the bearing bushing. A retaining copper strip is tightly disposed between the spliced ​​upper bearing shell 3 and the spliced ​​lower bearing shell 4. The spliced ​​upper bearing bushing 1 has a third inclined bottom surface, and the spliced ​​lower bearing bushing 2 has a third inclined top surface. The third inclined bottom surface and the third inclined top surface are adapted to each other. The third inclined bottom surface is a surface that slopes upward from the front end to the rear end, and the angle between the third inclined bottom surface and the horizontal plane is α.

[0052] In one embodiment, the stop copper strip includes a first upper bearing stop copper strip 5, a second upper bearing stop copper strip 6, a first lower bearing stop copper strip 7, and a second lower bearing stop copper strip 8;

[0053] The first upper bearing stop copper strip 5 and the first lower bearing stop copper strip 7 are adapted to each other and are disposed in the gap on one side of the spliced ​​bearing upper half bearing 3 and spliced ​​bearing lower half bearing 4.

[0054] The second upper bearing stop copper strip 6 and the second lower bearing stop copper strip 8 are adapted to each other and are set in the gap on the other side of the spliced ​​bearing upper half bearing 3 and spliced ​​bearing lower half bearing 4.

[0055] The first upper bearing stop copper strip 5 has a first inclined bottom surface, and the first lower bearing stop copper strip 7 has a first inclined top surface. The first inclined bottom surface and the first inclined top surface are adapted to each other. The first inclined bottom surface is a surface that slopes upward from the front end to the rear end. The angle between the first inclined bottom surface and the horizontal plane is α.

[0056] The second upper bearing stop copper strip 6 has a second inclined bottom surface, and the second lower bearing stop copper strip 8 has a second inclined top surface. The second inclined bottom surface and the second inclined top surface are adapted to each other. The second inclined bottom surface is a surface that slopes upward from the front end to the rear end. The angle between the second inclined bottom surface and the horizontal plane is α.

[0057] In one embodiment, the opposing surfaces of the upper half bearing shell 3 and the lower half bearing shell 4 of the spliced ​​bearing are radially inclined planes. The radially inclined plane is a surface that slopes from the inner side of the bearing shell to the outer side of the bearing shell. The angle between the radially inclined plane and the vertical plane is β. The top and bottom surfaces of the stop copper strip are configured to cooperate with the radially inclined plane.

[0058] Example 2

[0059] like Figure 4 ,5 The structure of the stop copper strip is explained using the first upper bearing stop copper strip 5 as an example.

[0060] The inner and outer surfaces of the first upper bearing retaining copper strip 5 are both arc-shaped. The radius R1 of the inner surface is larger than the radius of the bearing inner hole, and the radius R2 of the outer surface is adapted to the bearing inner hole. The first upper bearing retaining copper strip 5 has a bottom surface 5-1, a top surface 5-2, and a threaded hole 5-3 (penetrating the inner and outer surfaces of the copper strip). The retaining copper strip is fixedly connected to the bearing by a copper strip fixing bolt 9 passing through the threaded hole 5-3. The copper strip fixing bolt 9 is used to tighten the bushing and the retaining copper strip to press the bearing. The bottom surface 5-1 of the first upper bearing retaining copper strip is an axially inclined plane with a higher front end and a lower rear end, and the top surface 5-2 of the first upper bearing retaining copper strip is a radially inclined plane with a higher inner side and a lower outer side.

[0061] In this device, the second upper bearing stop copper strip 6, the first lower bearing stop copper strip 7, and the second lower bearing stop copper strip 8 have similar structures to the first upper bearing stop copper strip 5. Specifically, the top surface, bottom surface, and inner and outer arc-shaped surfaces of the second upper bearing stop copper strip 6 are symmetrical with respect to the first upper bearing stop copper strip 5 along the vertical central axis of the bearing; similarly, the top surface, bottom surface, and inner and outer arc-shaped surfaces of the first lower bearing stop copper strip 7 are symmetrical with respect to the second lower bearing stop copper strip 8 along the vertical central axis of the bearing.

[0062] In this embodiment, the relationship between the thickness h of the stop copper strip and the thickness H of the bearing bush is: 1 / 2H ≤ h ≤ 2 / 3H. The α angle is: 0.1° < α < 1°. The β angle is: 5° < α < 15°.

[0063] Example 3

[0064] This embodiment provides a structure for machining a stop copper strip blank, specifically as follows: Figure 6 , 7 As shown.

[0065] The fixture for machining the stop copper strip blank is used to machine the inner and outer sides (inner and outer arc surfaces) of the stop copper strip. It includes a cylindrical fixture body 10. The inner diameter R3 of the fixture body 10 is greater than the inner side radius R1 of the stop copper strip, and the outer diameter R4 of the fixture body 10 is less than the outer side radius R2 of the stop copper strip. Several pairs of radially penetrating copper strip embedding grooves 10-1 are evenly distributed on the cylindrical wall of the fixture body 10. The length direction of the copper strip embedding grooves 10-1 is consistent with the axial direction of the fixture body 10. Each pair of copper strip embedding grooves 10-1 is symmetrically distributed along the axial centerline of the fixture body 10, and the axial center section 10-4 of each pair of copper strip embedding grooves 10-1 is parallel to each other and distributed on both sides of the axial centerline of the fixture body 10. In this embodiment, there are 2 pairs, for a total of 4 copper strip embedding grooves 10-1. The specific number can be flexibly set according to processing requirements.

[0066] Because this structure employs a pair of copper strip embedding slots 10-1 symmetrically distributed along the axial centerline of the tooling body 10, and the axial center section 10-4 of each pair of copper strip embedding slots 10-1 is parallel to each other and distributed on both sides of the axial centerline of the tooling body 10, when the rectangular copper strip is embedded, the two sides of the copper strip protrude from the inner wall of the tooling body 10 at different heights, and the top and bottom surfaces of the copper strip form an angle greater than 0° with the tangential section of the cylindrical wall of the tooling body at that location.

[0067] In one embodiment, the copper strip embedding groove 10-1 is a stepped groove, and the copper strip embedding groove 10-1 includes a first rectangular groove 10-2 located at the bottom and a second rectangular groove 10-3 located at the top. The width L1 of the first rectangular groove 10-2 is smaller than the width L2 of the second rectangular groove 10-3.

[0068] Example 4

[0069] This embodiment provides a structure for machining a stop copper strip, specifically as follows: Figure 9 , 10 As shown.

[0070] The fixture for machining the stop copper strip is used to machine the top and bottom surfaces of the stop copper strip, including any one of a first inclined bottom surface, a first inclined top surface, a second inclined bottom surface, and a second inclined top surface. This fixture is a double-T type machining fixture, including a T-shaped base 11 and a T-shaped top seat 12. The T-shaped base 11 has a strip-shaped protrusion 11-3 in the middle, and the top surface of the protrusion 11-3 is an arc-shaped surface adapted to the inner surface of the stop copper strip blank, i.e., a radius of R1.

[0071] The T-shaped base 11 has two first bolt holes 11-1 on each side of the protrusion 11-3 for fixing the T-shaped top seat 12. The T-shaped top seat 12 can be detachably mounted on either side of the protrusion 11-3 via the first bolt holes 11-1, the first fixing bolt 14, and the spring washer 15.

[0072] The T-shaped top seat 12 is provided with a horizontal feed adjustment component. In this embodiment, the horizontal feed adjustment component is a horizontal feed adjustment bolt 13. The head of the horizontal feed adjustment bolt 13 is used to engage with the copper plate and the top or bottom surface of the stop copper strip blank during processing.

[0073] Example 5

[0074] This embodiment provides a method for processing the first upper bearing bush stop copper strip, specifically as follows: Figure 8 , 11 As shown in ~14.

[0075] This method simplifies the processing of the stop copper strip into two steps:

[0076] Step 1: Machin the arc-shaped surface of the stop copper strip, including the inner and outer arc-shaped surfaces.

[0077] Step 2: Machining the top and bottom surfaces of the stop copper strip. These surfaces are inclined planes, consisting of a radial inclined plane and an axial inclined plane. The radial inclined plane is an upward or downward slope along the inner side of the stop copper strip, with an angle β between it and the vertical plane. The axial inclined plane is an upward or downward slope along one end of the stop copper strip, with an angle α between it and the horizontal plane.

[0078] The specific processing steps of step 1 are as follows: Figure 8 As shown:

[0079] The copper strip 10-6 is assembled on the tooling for machining the stop copper strip blank. The inner and outer curved sides of the stop copper strip are machined on a lathe to form the stop copper strip blank. The radius of the inner curved side of the stop copper strip blank is R1, and the radius of the outer curved side is R2.

[0080] When assembling the copper strip 10-6 onto the fixture for machining the stop copper strip blank, the width L1-a of the copper strip is less than the width L1 of the first rectangular groove 10-2, and a is generally 0.05-0.2mm smaller than L1, depending on the situation. The insertion position is such that the bottom of the copper strip protrudes from the inner wall of the fixture body 10, and the top of the copper strip 10-6 protrudes from the outer wall of the fixture body 10, ensuring that the assembly depth of the copper strip 10-6 meets the machining allowance of the arc-shaped inner and outer sides of the stop copper strip. The two sides of the copper strip are spot-welded to the fixture body 10 for fixation, with the spot weld position 10-5 within the second rectangular groove 10-3. The fixture for machining the stop copper strip blank, after being spot-welded with the copper strip, is then clamped onto a CNC lathe to machine the inner wall R1 and outer wall R2 of the stop copper strip, ultimately yielding the stop copper strip blank.

[0081] The specific processing steps for step 2 are as follows:

[0082] like Figure 11 , 12 The inner wall of the stop copper strip blank, i.e., the arc-shaped inner side, is placed downwards on top of the protrusion 11-3, so that the top surface of the protrusion 11-3 matches the inner wall of the stop copper strip blank. A first copper plate 17 is placed on top of the stop copper strip blank and is tightened with the second fixing bolt 16 and the second bolt hole 11-2. At the same time, the amount of rotation of the horizontal feed adjusting bolt 13 on one side of the stop copper strip blank is adjusted, and with the help of the second copper plate 18, the stop copper strip blank is tightened.

[0083] Then, after the entire fixture is installed on a CNC boring and milling machine, the bottom surface 5-1 of the first upper bearing stop copper strip 5 is machined, which forms an angle α with the horizontal.

[0084] like Figure 13 , 14Remove the horizontal feed adjustment bolt 13, the first fixing bolt 14, and the spring washer 15, and reinstall the T-shaped top seat 12 on the bottom surface 5-1 of the machined first upper bearing stop copper strip. Tighten the stop copper strip to the second copper plate 18 using the horizontal feed adjustment bolt 13, and machine the top surface 5-2 of the first upper bearing stop copper strip on the same CNC boring and milling machine.

[0085] The above steps complete the machining of the inner wall R1 and outer wall R2 of the stop copper strip, as well as the axial inclined plane (at an angle α with the horizontal) and the radial inclined plane (at an angle β with the vertical).

[0086] The processing method for the remaining stop copper bars is the same.

[0087] It should be understood that the specific order or hierarchy of steps in the disclosed process is an example of an exemplary method. Based on design preferences, it should be understood that the specific order or hierarchy of steps in the process may be rearranged without departing from the scope of this disclosure. The appended method claims provide elements of various steps in an exemplary order and are not intended to limit the scope to the specific order or hierarchy described.

[0088] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A split-type water-lubricated bearing, comprising a spliced ​​upper bearing bushing (1), a spliced ​​lower bearing bushing (2), a spliced ​​upper bearing shell (3), and a spliced ​​lower bearing shell (4), wherein the spliced ​​upper bearing bushing (1) and the spliced ​​lower bearing bushing (2) are spliced ​​together to form a bearing bushing, and the spliced ​​upper bearing shell (3) and the spliced ​​lower bearing shell (4) are disposed opposite to each other within the bearing bushing, characterized in that: A stop copper strip is tightly provided between the upper half bearing shell (3) and the lower half bearing shell (4) of the spliced ​​bearing. The upper half bushing (1) of the spliced ​​bearing has a third inclined bottom surface, and the lower half bushing (2) of the spliced ​​bearing has a third inclined top surface. The third inclined bottom surface and the third inclined top surface are adapted to each other. The third inclined bottom surface is a surface that is inclined upward from the front end to the rear end. The angle between the third inclined bottom surface and the horizontal plane is α. The stop copper strip includes a first upper bearing stop copper strip (5), a second upper bearing stop copper strip (6), a first lower bearing stop copper strip (7), and a second lower bearing stop copper strip (8). The first upper bearing stop copper strip (5) and the first lower bearing stop copper strip (7) are adapted to each other and are set in the gap on one side of the spliced ​​bearing upper half bearing (3) and spliced ​​bearing lower half bearing (4); The second upper bearing stop copper strip (6) and the second lower bearing stop copper strip (8) are adapted to each other and are set in the gap on the other side of the spliced ​​bearing upper half bearing (3) and spliced ​​bearing lower half bearing (4); The first upper bearing stop copper strip (5) has a first inclined bottom surface, and the first lower bearing stop copper strip (7) has a first inclined top surface. The first inclined bottom surface and the first inclined top surface are adapted to each other. The first inclined bottom surface is a surface that is inclined upward from the front end to the rear end. The angle between the first inclined bottom surface and the horizontal plane is α. The second upper bearing stop copper strip (6) has a second inclined bottom surface, and the second lower bearing stop copper strip (8) has a second inclined top surface. The second inclined bottom surface and the second inclined top surface are adapted to each other. The second inclined bottom surface is a surface that is inclined upward from the front end to the rear end. The angle between the second inclined bottom surface and the horizontal plane is α. The surfaces of the upper half bearing shell (3) and the lower half bearing shell (4) of the spliced ​​bearing are radially inclined planes. The radially inclined plane is a surface that slopes from the inner side of the bearing shell to the outer side of the bearing shell. The angle between the radially inclined plane and the vertical plane is β. The top and bottom surfaces of the stop copper strip are fitted with the radially inclined plane. The inner and outer sides of the stop copper strip are both arc-shaped surfaces. The inner side radius R1 of the stop copper strip is greater than the inner hole radius of the bearing bush. The outer side radius R2 of the stop copper strip is adapted to the inner hole of the bearing. The stop copper strip is fixedly connected to the bearing by copper strip fixing bolts (9) that penetrate the inner and outer sides of the copper strip. The relationship between the thickness h of the stop copper strip and the thickness H of the bearing bush is: 1 / 3×H<h<2 / 3×H, the α angle satisfies 0.1°<α<1°; the β angle satisfies 5°<β<15°.

2. A method for processing a stop copper strip, characterized in that, The method for machining the retaining copper strip of the split water-lubricated bearing as described in claim 1 includes: The copper strip (10-6) is assembled on the tooling for machining the stop copper strip blank, and the arc-shaped inner and outer sides of the stop copper strip are machined by a lathe to form the stop copper strip blank. The stop copper strip blank is fixed on the stop copper strip processing fixture, and the stop copper strip is processed from one side of the stop copper strip blank using a lathe to adapt to the top or bottom surface of the radial inclined plane of the bearing bush. Using a lathe, any one of the following can be machined from the other side of the stop copper strip blank: a first inclined bottom surface, a first inclined top surface, a second inclined bottom surface, and a second inclined top surface, to form a stop copper strip.

3. The method for processing the stop copper strip as described in claim 2, characterized in that: The stop copper strip blank processing fixture includes a cylindrical fixture body (10). Several pairs of radially penetrating copper strip embedding grooves (10-1) are evenly distributed on the cylindrical wall of the fixture body (10). The length direction of the copper strip embedding grooves (10-1) is consistent with the axial direction of the fixture body (10). Each pair of copper strip embedding grooves (10-1) is symmetrically distributed along the axial center line of the fixture body (10), and the axial center section (10-4) of each pair of copper strip embedding grooves (10-1) is parallel to each other and distributed on both sides of the axial center line of the fixture body (10).

4. The method for processing the stop copper strip as described in claim 3, characterized in that: The copper strip embedding groove (10-1) is a stepped groove. The copper strip embedding groove (10-1) includes a first rectangular groove (10-2) at the bottom and a second rectangular groove (10-3) at the top. The width of the first rectangular groove (10-2) is smaller than the width of the second rectangular groove (10-3).

5. The method for processing the stop copper strip as described in claim 3, characterized in that: When the copper strip (10-6) is assembled on the tooling for machining the stop copper strip blank, the bottom of the copper strip (10-6) protrudes from the inner wall of the tooling body (10), and the top of the copper strip (10-6) protrudes from the outer wall of the tooling body (10), so that the assembly depth of the copper strip (10-6) meets the machining allowance of the arc-shaped inner and outer sides of the stop copper strip.

6. The method for processing the stop copper strip as described in claim 2, characterized in that: The stop copper strip processing fixture includes a T-shaped base (11) and a T-shaped top seat (12). The T-shaped base (11) has a strip-shaped protrusion (11-3) in the middle. The top surface of the protrusion (11-3) is an arc-shaped surface that matches the inner side of the stop copper strip blank. The T-shaped top seat (12) can be detachably set on either side of the protrusion (11-3). The T-shaped top seat (12) is provided with a horizontal feed adjustment component.

7. The method for processing the stop copper strip as described in claim 6, characterized in that: The T-shaped top seat (12) is fixed to any side of the protrusion (11-3) by bolts, and the T-shaped top seat (12) is provided with a horizontal feed adjustment bolt (13).

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