Method for repairing motor thrust disc

Abstract

The application relates to the technical field of nuclear auxiliary cooling water systems, and discloses a motor thrust disc repairing method. The motor thrust disc repairing method comprises the following steps: fixing the motor thrust disc; determining a part to be repaired of the motor thrust disc; and processing the part to be repaired of the motor thrust disc according to size precision requirements and roughness requirements of the part to be repaired of the motor thrust disc, so that the size of the part to be repaired of the motor thrust disc meets the size precision requirements, and the roughness of the part to be repaired of the motor thrust disc meets the roughness requirements. The motor thrust disc repairing method can repair the motor thrust disc well, so that the motor thrust disc can be reused, and the maintenance cost of a nuclear main pump can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nuclear auxiliary cooling water system, in particular to a motor thrust disc repairing method. BACKGROUND

[0002] The nuclear main pump is a pump in the nuclear island primary system, which is used to drive the coolant to circulate in the RCP (reactor coolant system) system. The motor thrust disc is a key component to ensure the stable operation of the motor of the nuclear main pump. However, in the related art, the motor thrust disc is worn after long-term operation, which leads to the replacement of the motor thrust disc and further leads to the high maintenance cost of the nuclear main pump. SUMMARY

[0003] Therefore, it is necessary to provide a motor thrust disc repairing method to solve the problem of high maintenance cost of the nuclear main pump in the related art.

[0004] The present application provides a motor thrust disc repairing method, which comprises:

[0005] fixing the motor thrust disc;

[0006] determining the to-be-repaired parts of the motor thrust disc;

[0007] processing the to-be-repaired parts of the motor thrust disc according to the dimensional accuracy requirement and the roughness requirement of the to-be-repaired parts of the motor thrust disc, so that the dimensions of the to-be-repaired parts meet the dimensional accuracy requirement, and the roughness of the to-be-repaired parts meets the roughness requirement.

[0008] In one of the embodiments, the motor thrust disc has a plurality of to-be-repaired parts, and the processing of the to-be-repaired parts of the motor thrust disc according to the dimensional accuracy requirement and the roughness requirement of the to-be-repaired parts of the motor thrust disc specifically comprises:

[0009] processing each to-be-repaired part according to the dimensional accuracy requirement and the roughness requirement corresponding to each to-be-repaired part, so that the dimensions of the to-be-repaired part meet the corresponding dimensional accuracy requirement, and the roughness of the to-be-repaired part meets the corresponding roughness requirement.

[0010] In one of the embodiments, the processing of the to-be-repaired parts of the motor thrust disc according to the dimensional accuracy requirement and the roughness requirement of the to-be-repaired parts of the motor thrust disc specifically comprises:

[0011] dividing the roughness requirements corresponding to a plurality of to-be-repaired parts into a plurality of roughness levels;

[0012] According to the roughness level corresponding to the to-be-repaired part, the to-be-repaired part is processed so that the size of the to-be-repaired part meets the corresponding size precision requirement and the roughness of the to-be-repaired part reaches the corresponding roughness level.

[0013] In one of the embodiments, the processing of the to-be-repaired part according to the roughness level corresponding to the to-be-repaired part specifically includes:

[0014] If the roughness level corresponding to the to-be-repaired part is a first roughness, the to-be-repaired part is sequentially processed by finish turning, micromachining, grinding and polishing.

[0015] In one of the embodiments, the processing of the to-be-repaired part according to the roughness level corresponding to the to-be-repaired part further includes:

[0016] If the roughness level corresponding to the to-be-repaired part is a second roughness, the to-be-repaired part is sequentially processed by finish turning, grinding and polishing.

[0017] The second roughness is greater than the first roughness.

[0018] In one of the embodiments, the processing of the to-be-repaired part according to the roughness level corresponding to the to-be-repaired part further includes:

[0019] If the roughness level corresponding to the to-be-repaired part is a third roughness, the to-be-repaired part is processed by finish turning.

[0020] If the roughness level corresponding to the to-be-repaired part is a fourth roughness, the to-be-repaired part is processed by rough turning.

[0021] The fourth roughness is greater than the third roughness, and the third roughness is greater than the second roughness.

[0022] In one of the embodiments, the fixing of the motor thrust disc specifically includes:

[0023] The motor thrust disc is fixed on the worktable surface of the numerical control vertical lathe, and the axis direction of the motor thrust disc is perpendicular to the worktable surface.

[0024] In one of the embodiments, the numerical control vertical lathe includes a machining tool above the worktable surface, and the processing of the to-be-repaired part of the motor thrust disc according to the size precision requirement and the roughness requirement of the to-be-repaired part of the motor thrust disc specifically includes:

[0025] determine a target rotating speed and a target feeding amount of a machining tool of the numerical control vertical lathe according to a dimensional accuracy requirement and a roughness requirement of the part to be repaired of the motor thrust disc;

[0026] machining the part to be repaired of the motor thrust disc by using the machining tool of the numerical control vertical lathe with the target rotating speed and the target feeding amount of the machining tool of the numerical control vertical lathe.

[0027] In one of the embodiments, before the machining the part to be repaired of the motor thrust disc by using the machining tool of the numerical control vertical lathe, the motor thrust disc repairing method further comprises: detecting the numerical control vertical lathe.

[0028] In one of the embodiments, the detecting the numerical control vertical lathe specifically comprises:

[0029] detecting a perpendicularity of a movement of the machining tool of the numerical control vertical lathe along a z-axis direction relative to the worktable surface;

[0030] detecting a parallelism of a movement of the machining tool of the numerical control vertical lathe along an x-axis direction relative to the worktable surface.

[0031] In one of the embodiments, the detecting the numerical control vertical lathe further comprises:

[0032] detecting whether a displacement accuracy of the machining tool of the numerical control vertical lathe along the x-axis direction meets a first accuracy requirement;

[0033] detecting whether a displacement accuracy of the machining tool of the numerical control vertical lathe along the z-axis direction meets a second accuracy requirement.

[0034] In one of the embodiments, before the fixing the motor thrust disc, the motor thrust disc repairing method further comprises:

[0035] fixing a plurality of supporting members on the worktable surface for jointly bearing the motor thrust disc;

[0036] grinding top portions of the plurality of supporting members to respectively form bearing surfaces for bearing the motor thrust disc and arranged flush with each other, and making a flatness of the bearing surfaces meet a preset requirement.

[0037] In one of the embodiments, the motor thrust disc comprises a plurality of parts to be detected, and the determining the part to be repaired of the motor thrust disc specifically comprises:

[0038] respectively detecting the plurality of parts to be detected of the motor thrust disc;

[0039] If the to-be-detected part of the motor thrust disc does not meet the corresponding size precision requirement and / or the corresponding roughness requirement, the to-be-detected part is determined as a to-be-repaired part of the motor thrust disc.

[0040] In one of the embodiments, the to-be-detected parts include an inner hole and an outer cylindrical surface of the motor thrust disc, the inner hole is arranged through the motor thrust disc along the axial direction of the motor thrust disc, and the outer cylindrical surface is arranged around the inner hole; and the detecting the to-be-detected parts of the motor thrust disc respectively includes:

[0041] detecting the radial size, roundness, cylindricity, taper, and roughness of the hole wall of the inner hole;

[0042] detecting the radial size, cylindricity, runout of the outer cylindrical surface relative to the inner hole, and roughness of the outer cylindrical surface;

[0043] The runout of the outer cylindrical surface relative to the inner hole refers to the concentricity and roundness of the outer cylindrical surface relative to the inner hole.

[0044] In one of the embodiments, the motor thrust disc includes a first cylindrical segment and a second cylindrical segment connected along the axial direction of the motor thrust disc, the radial size of the second cylindrical segment is greater than that of the first cylindrical segment; the inner hole is arranged through the first cylindrical segment and the second cylindrical segment along the axial direction of the motor thrust disc; the outer cylindrical surface is arranged on the outer periphery of the first cylindrical segment; along the radial direction of the second cylindrical segment, the part of the second cylindrical segment protruding out of the first cylindrical segment is provided with an upper thrust surface and a lower thrust surface, the upper thrust surface and the lower thrust surface are arranged opposite to each other along the axial direction of the motor thrust disc; the to-be-detected parts include the second cylindrical segment, the upper thrust surface, and the lower thrust surface; and the detecting the to-be-detected parts of the motor thrust disc respectively includes:

[0045] detecting the planeness and roughness of the upper thrust surface;

[0046] detecting the planeness, roughness of the lower thrust surface, and parallelism of the lower thrust surface relative to the upper thrust surface;

[0047] detecting the size of the second cylindrical segment along the radial direction of the second cylindrical segment and the roughness of the outer peripheral wall of the second cylindrical segment.

[0048] In one of the embodiments, after the to-be-repaired part of the motor thrust disc is machined according to the size precision requirement and the roughness requirement of the to-be-repaired part of the motor thrust disc, the repairing method of the motor thrust disc further includes:

[0049] The detection is performed on the part to be repaired of the motor thrust disc, and according to the detection result of the part to be repaired of the motor thrust disc, it is determined whether the size of the part to be repaired of the motor thrust disc meets the size precision requirement and whether the roughness of the part to be repaired of the motor thrust disc meets the roughness requirement.

[0050] The motor thrust disc repairing method can process the part to be repaired of the motor thrust disc according to the size precision requirement and the roughness requirement of the part to be repaired, so that the size of the part to be repaired of the motor thrust disc meets the size precision requirement and the roughness of the part to be repaired of the motor thrust disc meets the roughness requirement, and the motor thrust disc can be well repaired for reuse, thereby reducing the maintenance cost of the nuclear main pump. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 A flowchart of a motor thrust disc repairing method in an embodiment of the present application is shown.

[0052] Figure 2 A structure diagram of a motor thrust disc in an embodiment of the present application is shown.

[0053] Figure 3 A flowchart of a motor thrust disc repairing method in another embodiment of the present application is shown.

[0054] Figure 4 A flowchart of detecting multiple parts to be detected of a motor thrust disc respectively in an embodiment of the present application is shown.

[0055] Figure 5 A flowchart of processing a part to be repaired according to the roughness grade corresponding to the part to be repaired in an embodiment of the present application is shown.

[0056] Figure 6 A flowchart of a motor thrust disc repairing method in still another embodiment of the present application is shown.

[0057] Figure 7 A structure diagram of a motor thrust disc and a numerical control vertical lathe in an embodiment of the present application (when the top end of the motor thrust disc is arranged upward).

[0058] Figure 8 A flowchart of a motor thrust disc repairing method in still another embodiment of the present application is shown.

[0059] Figure 9 A structure diagram of a motor thrust disc and a numerical control vertical lathe in an embodiment of the present application (when the bottom end of the motor thrust disc is arranged upward).

[0060] 10, motor thrust plate; 110, part to be repaired; 111, inner hole; 1111, first hole wall; 1112, second hole wall; 112, outer cylindrical surface; 113, first cylindrical section; 114, second cylindrical section; 1141, upper thrust surface; 1142, lower thrust surface; 115, first end surface; 116, second end surface; a, stop opening;

[0061] 20, CNC vertical lathe; 21, worktable surface; 22, machining tool; 30, support; 31, bearing surface; 40, clamp; 41, chuck jaw. DETAILED DESCRIPTION

[0062] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated to cover all such modifications as fall within the scope of the application. It is to be understood that the application is not limited in its application to the details set forth in the description below.

[0063] In the description of the present application, it should be understood that, if there are terms such as "center", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0064] In addition, if there are terms such as "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0065] In this application, unless otherwise expressly specified and limited, the terms "connected," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] It should be noted that if a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. If a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0068] Research has revealed that after a period of use, the motor thrust plate experiences a certain degree of wear, causing the local dimensions and roughness of the motor thrust plate to fail to meet requirements. Replacing the entire motor thrust plate would result in higher maintenance costs for the nuclear main pump.

[0069] To address the high maintenance costs of nuclear main pumps in related technologies, this application proposes a method for repairing motor thrust discs, which enables the repair and reuse of a portion of the motor thrust discs, thereby reducing the maintenance costs of nuclear main pumps.

[0070] Figure 1 A schematic flowchart of a repair method for the motor thrust disk 10 according to an embodiment of this application is shown. Figure 2 This is a schematic diagram of the structure of the motor thrust disk 10 in one embodiment of this application.

[0071] Please see Figure 1 and Figure 2 The repair method for the motor thrust disc 10 provided in one embodiment of this application includes the following steps:

[0072] S210, fixed motor thrust plate 10.

[0073] S220, determine the to-be-repaired part 110 of the motor thrust plate 10.

[0074] S230, according to the size accuracy requirement and the roughness requirement of the to-be-repaired part 110 of the motor thrust plate 10, process the to-be-repaired part 110 of the motor thrust plate 10, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust plate 10 meets the roughness requirement.

[0075] In this way, the to-be-repaired part 110 of the motor thrust plate 10 can be processed according to the size accuracy requirement and the roughness requirement of the to-be-repaired part 110, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust plate 10 meets the roughness requirement, thereby the motor thrust plate 10 can be repaired well, so as to reuse the motor thrust plate 10, and the maintenance cost of the nuclear main pump can be reduced.

[0076] In other embodiments, referring to Figure 3 , the motor thrust plate 10 repairing method comprises the following steps:

[0077] S210, fix the motor thrust plate 10.

[0078] Optionally, the motor thrust plate 10 is fixed, specifically comprising:

[0079] S211, fix the motor thrust plate 10 on the workbench surface 21 of the numerical control vertical lathe 20, and make the axial direction of the motor thrust plate 10 perpendicular to the workbench surface 21.

[0080] Compared with the horizontal lathe (the horizontal lathe is used to clamp one end of the motor thrust plate 10, which causes the motor thrust plate 10 to easily sag), the numerical control vertical lathe 20 is adopted in the application, which can make the axial direction of the motor thrust plate 10 vertically fixed on the workbench surface 21 of the numerical control vertical lathe 20, can reduce the assembly cumulative error caused by the clamping process, the motor thrust plate 10 can be stably placed on the workbench surface 21 of the numerical control vertical lathe 20, so that the clamping alignment of the motor thrust plate 10 is very convenient, the clamping alignment error can be controlled within 0.01mm, and at the same time, the numerical control vertical lathe 20 is selected, which can improve the turning machining precision of the motor thrust plate 10.

[0081] S220, determine the to-be-repaired part 110 of the motor thrust plate 10.

[0082] Optionally, the motor thrust plate 10 comprises a plurality of to-be-detected parts, and the step S220 of determining the to-be-repaired part 110 of the motor thrust plate 10 specifically comprises:

[0083] S221, respectively, a plurality of to-be-detected parts of the motor thrust disc 10 are detected.

[0084] S222, if the to-be-detected part of the motor thrust disc 10 does not meet the corresponding size accuracy requirement and / or the corresponding roughness requirement, it is determined that the to-be-detected part is the to-be-repaired part 110 of the motor thrust disc 10.

[0085] Optionally, the plurality of to-be-detected parts include an inner hole 111 provided through the motor thrust disc 10 along the axial direction of the motor thrust disc 10, and an outer cylindrical surface 112 arranged around the inner hole 111. Please refer to Figure 4 , respectively, a plurality of to-be-detected parts of the motor thrust disc 10 are detected. The step S221 specifically includes:

[0086] S2211, the radial size, roundness, cylindricity, taper and roughness of the hole wall of the inner hole 111 are detected.

[0087] The radial size, roundness, cylindricity, taper and roughness of the hole wall of the inner hole 111 can be detected by using a coordinate measuring machine (CMM) and a micrometer, and the roughness of the hole wall of the inner hole 111 can be detected by using a roughness meter.

[0088] Specifically, taking the detection of the roundness of the hole wall of the inner hole 111 as an example, two opposite points on both sides of the center point can be selected, and the three-dimensional coordinates of the two opposite points are used to obtain the three-dimensional coordinates of the center point. Then, the micrometer is rotated around the center point for one revolution to detect whether the roundness of the hole wall of the inner hole 111 meets the requirements.

[0089] If at least one of the radial size, roundness, cylindricity and taper of the hole wall of the inner hole 111 does not meet the corresponding size accuracy requirement, and / or if the roughness of the hole wall of the inner hole 111 does not meet the corresponding roughness requirement, the inner hole 111 is determined to be the to-be-repaired part 110 of the motor thrust disc 10.

[0090] Optionally, the hole wall of the inner hole 111 includes a first hole wall 1111 and a second hole wall 1112, and the corresponding size accuracy requirement of the inner hole 111 includes that the inner diameter of the first hole wall 1111 meets the range of 294.200mm-294.215mm, the inner diameter of the second hole wall 1112 meets the range of 295.500mm-295.015mm, and the roundness, cylindricity and taper of the hole wall of the inner hole 111 are less than or equal to 0.01mm.

[0091] The corresponding roughness requirement of the inner hole 111 includes that the roughness of the first hole wall 1111 reaches 1.6μm, and the roughness of the second hole wall 1112 reaches 1.6μm.

[0092] S2212, detect the radial dimension of the outer cylindrical surface 112, the cylindricity of the outer cylindrical surface 112, the runout of the outer cylindrical surface 112 relative to the inner hole 111, and the roughness of the outer cylindrical surface 112.

[0093] The runout of the outer cylindrical surface 112 relative to the inner hole 111 refers to the concentricity and the roundness of the outer cylindrical surface 112 relative to the inner hole 111.

[0094] The radial dimension of the outer cylindrical surface 112, the cylindricity of the outer cylindrical surface 112, and the runout of the outer cylindrical surface 112 relative to the inner hole 111 can also be detected by using a coordinate measuring machine (CMM) and a micrometer, and the roughness of the outer cylindrical surface 112 can also be detected by using a roughness meter.

[0095] If at least one of the radial dimension of the outer cylindrical surface 112, the cylindricity of the outer cylindrical surface 112, and the runout of the outer cylindrical surface 112 relative to the inner hole 111 does not meet the corresponding dimensional accuracy requirement, and / or if the roughness of the outer cylindrical surface 112 does not meet the corresponding roughness requirement, the outer cylindrical surface 112 is the repair site 110 of the motor thrust plate 10.

[0096] Optionally, the corresponding dimensional accuracy requirement of the outer cylindrical surface 112 includes that the outer diameter of the outer cylindrical surface 112 meets the range of 449.95mm-450.00mm, and the roundness, cylindricity, and taper of the hole wall of the outer cylindrical surface 112 are less than or equal to 0.01mm.

[0097] The corresponding roughness requirement of the outer cylindrical surface 112 includes that the roughness of the outer cylindrical surface 112 reaches 0.4μm.

[0098] In this way, the inner hole 111 and the outer cylindrical surface 112 can be detected more finely, so that the repair site 110 of the motor thrust plate can be more reliably confirmed, and the corresponding repair site 110 can be repaired according to the corresponding dimensional accuracy requirement and the corresponding roughness requirement, which can improve the reliability of the repair method of the motor thrust plate 10.

[0099] The motor thrust plate 10 includes a first cylindrical segment 113 and a second cylindrical segment 114 connected along the axial direction of the motor thrust plate 10, and the radial dimension of the second cylindrical segment 114 is greater than that of the first cylindrical segment 113; the inner hole 111 penetrates the first cylindrical segment 113 and the second cylindrical segment 114 along the axial direction of the motor thrust plate 10. The outer cylindrical surface 112 is arranged on the outer periphery of the first cylindrical segment 113. Along the radial direction of the second cylindrical segment 114, the part of the second cylindrical segment 114 protruding out of the first cylindrical segment 113 is provided with an upper thrust surface 1141 and a lower thrust surface 1142, and the upper thrust surface 1141 and the lower thrust surface 1142 are arranged opposite to each other along the axial direction of the motor thrust plate 10; the plurality of detection sites include the second cylindrical segment 114, the upper thrust surface 1141, and the lower thrust surface 1142.

[0100] Optionally, the step S221 of detecting the plurality of to-be-detected positions of the motor thrust disc 10 respectively further comprises:

[0101] S2213, detecting the planeness and roughness of the upper thrust surface 1141.

[0102] The planeness of the upper thrust surface 1141 can be detected by a coordinate measuring machine (CMM), and the roughness of the upper thrust surface 1141 can be detected by a roughness meter.

[0103] If the planeness of the upper thrust surface 1141 does not meet the corresponding dimensional accuracy requirement, or the roughness of the upper thrust surface 1141 does not meet the corresponding roughness requirement, the upper thrust surface 1141 is determined as the to-be-repaired position 110 of the motor thrust disc 10.

[0104] Optionally, the corresponding dimensional accuracy requirement of the upper thrust surface 1141 comprises that the planeness of the upper thrust surface 1141 is less than or equal to 0.01 mm.

[0105] The corresponding roughness requirement of the upper thrust surface 1141 comprises that the roughness of the upper thrust surface 1141 reaches 0.2 μm.

[0106] S2214, detecting the planeness, roughness of the lower thrust surface 1142, and the parallelism of the lower thrust surface 1142 relative to the upper thrust surface 1141.

[0107] The planeness of the lower thrust surface 1142 and the parallelism of the lower thrust surface 1142 relative to the upper thrust surface 1141 can be detected by a coordinate measuring machine (CMM), and the roughness of the lower thrust surface 1142 can be detected by a roughness meter.

[0108] Optionally, the corresponding dimensional accuracy requirement of the lower thrust surface 1142 comprises that the planeness of the lower thrust surface 1142 is less than or equal to 0.01 mm, and the parallelism of the lower thrust surface 1142 relative to the upper thrust surface 1141 meets the following condition: along the axial direction of the motor thrust disc 10, the spacing between the lower thrust surface 1142 and the upper thrust surface 1141 is 89.95 mm-90.05 mm.

[0109] The corresponding roughness requirement of the lower thrust surface 1142 comprises that the roughness of the lower thrust surface 1142 reaches 0.2 μm.

[0110] If at least one of the planeness of the lower thrust surface 1142 and the parallelism of the lower thrust surface 1142 relative to the upper thrust surface 1141 does not meet the corresponding dimensional accuracy requirement, and / or the roughness of the lower thrust surface 1142 does not meet the corresponding roughness requirement, the lower thrust surface 1142 is determined as the to-be-repaired position 110 of the motor thrust disc 10.

[0111] S2215, detecting the size of the second cylindrical segment 114 along the radial direction of the second cylindrical segment 114 and the roughness of the outer peripheral wall of the second cylindrical segment 114.

[0112] Optionally, the corresponding size accuracy requirement of the second cylindrical segment 114 includes that the size of the second cylindrical segment 114 along the radial direction of the second cylindrical segment 114 satisfies the range of 783.9mm-784mm.

[0113] The corresponding roughness requirement of the second cylindrical segment 114 includes that the roughness of the second cylindrical segment 114 reaches 3.2μm.

[0114] In this way, the upper thrust surface 1141, the lower thrust surface 1142 and the second cylindrical segment 114 can be detected more finely, so as to more reliably confirm the to-be-repaired part 110 of the motor thrust plate, and it is also beneficial to better repair the corresponding to-be-repaired part 110 according to the corresponding size accuracy requirement and the corresponding roughness requirement, and the reliability of the motor thrust plate 10 repair method can be improved.

[0115] Optionally, the first cylindrical segment 113 is provided with a shoulder a arranged around the inner hole 111, the shoulder a is concavely arranged on the side of the first cylindrical segment 113 away from the second cylindrical segment 114, and the side of the first cylindrical segment 113 away from the second cylindrical segment 114 is further provided with a first end face 115 and a second end face 116, the first end face 115, the shoulder a and the second end face 116 are arranged around the inner hole 111 in sequence. The step S221 of detecting the plurality of to-be-detected parts of the motor thrust plate 10 further includes:

[0116] S2216, detecting the radial size, roundness, cylindricity and runout of the shoulder a relative to the inner hole 111. The runout of the shoulder a relative to the inner hole 111 refers to the roundness and cylindricity of the shoulder a relative to the inner hole 111.

[0117] If at least one of the radial size, roundness, cylindricity and runout of the shoulder a relative to the inner hole 111 does not satisfy the corresponding size accuracy requirement, it is determined that the shoulder a is the to-be-repaired part 110 of the motor thrust plate 10.

[0118] S2216, detecting whether the height difference between the first end face 115 and the second end face 116 is 15mm-15.2mm, and if not, it is determined that the first end face 115 and the second end face 116 are the to-be-repaired part 110 of the motor thrust plate 10. The height difference between the first end face 115 and the second end face 116 is the size between the first end face 115 and the second end face 116 along the axial direction of the motor thrust plate 10.

[0119] S230, according to the size accuracy requirement and the roughness requirement of the to-be-repaired part 110 of the motor thrust plate 10, processing the to-be-repaired part 110 of the motor thrust plate 10, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust plate 10 meets the roughness requirement.

[0120] In this way, the to-be-repaired part 110 of the motor thrust plate 10 can be processed according to the size accuracy requirement and the roughness requirement of the to-be-repaired part 110, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust plate 10 meets the roughness requirement, thereby the motor thrust plate 10 can be repaired well for reuse, and the maintenance cost of the nuclear main pump can be reduced.

[0121] In some embodiments, the motor thrust plate 10 has a plurality of to-be-repaired parts 110, and the to-be-repaired parts 110 of the motor thrust plate are processed according to the size accuracy requirement and the roughness requirement of the to-be-repaired parts 110 of the motor thrust plate, specifically including:

[0122] According to the size accuracy requirement and the roughness requirement corresponding to each to-be-repaired part 110, processing each to-be-repaired part 110, so that the size of the to-be-repaired part 110 meets the corresponding size accuracy requirement, and the roughness of the to-be-repaired part 110 meets the corresponding roughness requirement.

[0123] In this way, each to-be-repaired part 110 is processed according to the size accuracy requirement and the roughness requirement corresponding to each to-be-repaired part 110, so that the size of each to-be-repaired part 110 meets the corresponding size accuracy requirement, and the roughness of each to-be-repaired part 110 meets the corresponding roughness requirement.

[0124] In some embodiments, referring to Figure 3 , the step S230 of processing the to-be-repaired part 110 of the motor thrust plate 10 according to the size accuracy requirement and the roughness requirement of the to-be-repaired part 110 of the motor thrust plate 10 specifically includes:

[0125] S231, the roughness requirements corresponding to a plurality of to-be-repaired parts 110 are divided into a plurality of roughness levels.

[0126] S232, according to the roughness level corresponding to the to-be-repaired part 110, processing the to-be-repaired part 110, so that the size of the to-be-repaired part 110 meets the corresponding size accuracy requirement, and the roughness of the to-be-repaired part 110 reaches the corresponding roughness level.

[0127] That is, different roughness levels are required to process the to-be-repaired part 110 correspondingly, so that the size of the to-be-repaired part 110 meets the size precision requirement corresponding to the to-be-repaired part 110, and the roughness of the to-be-repaired part 110 reaches the roughness level corresponding to the to-be-repaired part 110.

[0128] In the embodiment, referring to Figure 5 , the step S232 of processing the to-be-repaired part 110 according to the roughness level corresponding to the to-be-repaired part 110 specifically includes:

[0129] S2321, if the roughness level corresponding to the to-be-repaired part 110 is the first roughness, the to-be-repaired part 110 is sequentially subjected to finish turning, micromachining, grinding and polishing.

[0130] If the roughness level corresponding to the to-be-repaired part 110 is the first roughness, it means that the roughness level corresponding to the to-be-repaired part 110 is relatively high, and the roughness of the to-be-repaired part 110 needs to be relatively low, i.e. the to-be-repaired part 110 needs to be relatively smooth. Therefore, the to-be-repaired part 110 needs to be finely processed. Specifically, in the present application, the to-be-repaired part 110 is sequentially subjected to finish turning, micromachining, grinding and polishing, so that the roughness of the to-be-repaired part 110 reaches the first roughness.

[0131] Optionally, the first roughness is 0.2 μm.

[0132] In the embodiment, the step S232 of processing the to-be-repaired part 110 according to the roughness level corresponding to the to-be-repaired part 110 further includes:

[0133] S2322, if the roughness level corresponding to the to-be-repaired part 110 is the second roughness, the to-be-repaired part 110 is sequentially subjected to finish turning, grinding and polishing.

[0134] The second roughness is greater than the first roughness.

[0135] Optionally, the first roughness is 0.2 μm, and the second roughness is 0.4 μm.

[0136] Since the second roughness is greater than the first roughness, the level of the second roughness is lower than that of the first roughness. Therefore, the smoothness of the to-be-repaired part 110 needs to be lower than that corresponding to the first roughness. The to-be-repaired part 110 can be sequentially subjected to finish turning, grinding and polishing, so that the to-be-repaired part 110 reaches the second roughness.

[0137] In the embodiment, referring to Figure 5According to the roughness level corresponding to the to-be-repaired part 110, the step S232 of processing the to-be-repaired part 110 further includes:

[0138] S2323, if the roughness level corresponding to the to-be-repaired part 110 is the third roughness, then finish turning processing is performed on the to-be-repaired part 110.

[0139] S2324, if the roughness level corresponding to the to-be-repaired part 110 is the fourth roughness, then rough turning processing is performed on the to-be-repaired part 110.

[0140] The fourth roughness is greater than the third roughness, and the third roughness is greater than the second roughness.

[0141] Optionally, the third roughness is 1.6 μm, and the fourth roughness is 3.2 μm.

[0142] Since the third roughness is greater than the second roughness, it indicates that the required roughness level of the to-be-repaired part 110 that needs to reach the third roughness is low, and finish turning processing can be performed on the to-be-repaired part 110 to reach the third roughness.

[0143] Since the fourth roughness is greater than the third roughness, it indicates that the required roughness level of the to-be-repaired part 110 that needs to reach the fourth roughness is lower, and rough turning processing can be performed on the to-be-repaired part 110 to reach the fourth roughness.

[0144] For example, the processing tool 22 used in finish turning processing of the to-be-repaired part 110 can be an imported tool (such as a Sandvik tool), and the processing tool 22 used in rough turning processing of the to-be-repaired part 110 can be a domestic tool.

[0145] In some embodiments, referring to Figure 6 and Figure 7 The numerical control vertical lathe 20 includes the processing tool 22 located above the workbench surface 21. According to the dimensional accuracy requirement and the roughness requirement of the to-be-repaired part 110 of the motor thrust plate 10, the step S230 of processing the to-be-repaired part 110 of the motor thrust plate 10 specifically includes:

[0146] S2301, according to the dimensional accuracy requirement and the roughness requirement of the to-be-repaired part 110 of the motor thrust plate 10, the target rotating speed and the target feed rate of the processing tool 22 of the numerical control vertical lathe 20 are determined.

[0147] S2302, the target speed and the target feed amount of the machining tool 22 of the numerical control vertical lathe 20 are used to process the to-be-repaired part 110 of the motor thrust plate 10 by the machining tool 22 of the numerical control vertical lathe 20, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust plate 10 meets the roughness requirement.

[0148] If the roughness level in the roughness requirement corresponding to the to-be-repaired part 110 of the motor thrust plate 10 is high, that is, the corresponding roughness is low, the speed of the machining tool 22 can be increased to reach the corresponding target speed. Conversely, if the roughness level in the roughness requirement corresponding to the to-be-repaired part 110 of the motor thrust plate 10 is low, that is, the corresponding roughness is high, the speed of the machining tool 22 can be reduced to reach the corresponding target speed.

[0149] The feed amount of the machining tool 22 can be adjusted according to the difference between the actual size of the to-be-repaired part 110 of the motor thrust plate 10 and the corresponding size accuracy requirement, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the corresponding size accuracy requirement.

[0150] According to the size accuracy requirement and the roughness requirement of the to-be-repaired part 110 of the motor thrust plate 10, the speed of the machining tool 22 can be set as the target speed, and the feed amount of the machining tool 22 can be set as the target feed amount, so that the size of the to-be-repaired part 110 of the motor thrust plate 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust plate 10 meets the roughness requirement.

[0151] In this embodiment, please refer to Figure 3 , and in combination with Figure 7 , before the to-be-repaired part 110 of the motor thrust plate 10 is processed by the machining tool 22 of the numerical control vertical lathe 20, the motor thrust plate 10 repair method further comprises: S203, detecting the numerical control vertical lathe 20.

[0152] In this way, the machining accuracy of the machining tool 22 of the numerical control vertical lathe 20 can be better improved.

[0153] In this embodiment, the numerical control vertical lathe 20 is detected, specifically including:

[0154] S2031, the perpendicularity of the movement of the machining tool 22 of the numerical control vertical lathe 20 along the z-axis direction relative to the workbench 21 is detected.

[0155] Optionally, it is detected whether the perpendicularity of the movement of the machining tool 22 of the numerical control vertical lathe 20 along the z-axis direction relative to the worktable surface 21 reaches a target perpendicularity, and the target perpendicularity can be 0.01 mm / 500 mm, that is, the coordinate values of any two coordinate points every 500 mm in the x or y-axis direction perpendicular to the worktable surface 21 differ by no more than 0.01 mm.

[0156] S2032, it is detected whether the parallelism of the movement of the machining tool 22 of the numerical control vertical lathe 20 along the x-axis direction relative to the worktable surface 21 reaches a target parallelism.

[0157] Optionally, it is detected whether the parallelism of the movement of the machining tool 22 of the numerical control vertical lathe 20 along the x-axis direction relative to the worktable surface 21 reaches a target parallelism, and the target parallelism can be 0.01 mm.

[0158] Optionally, the perpendicularity of the movement of the machining tool 22 of the numerical control vertical lathe 20 along the z-axis direction relative to the worktable surface 21 can be detected by a coordinate measuring machine (CMM).

[0159] Optionally, the parallelism of the movement of the machining tool 22 of the numerical control vertical lathe 20 along the x-axis direction relative to the worktable surface 21 can be detected by a coordinate measuring machine (CMM).

[0160] In this way, before the machining of the to-be-repaired part 110, the machining tool 22 is detected, so that the movement of the machining tool 22 along the z-axis direction is better perpendicular to the worktable surface 21, and the movement of the machining tool 22 along the x-axis direction is better parallel to the worktable surface 21, thereby improving the machining precision of the machining tool 22 of the numerical control vertical lathe 20.

[0161] In the embodiment, the detection of the numerical control vertical lathe 20 further includes:

[0162] S2033, it is detected whether the displacement precision of the machining tool 22 of the numerical control vertical lathe 20 along the x-axis direction meets a first precision requirement.

[0163] Optionally, the first precision requirement includes that the displacement precision of the machining tool 22 of the numerical control vertical lathe 20 along the x-axis direction is 0.003 mm.

[0164] S2034, it is detected whether the displacement precision of the machining tool 22 of the numerical control vertical lathe 20 along the z-axis direction meets a second precision requirement.

[0165] Optionally, the second precision requirement includes that the displacement precision of the machining tool 22 of the numerical control vertical lathe 20 along the z-axis direction is 0.003 mm.

[0166] Optionally, whether the displacement precision of the machining tool 22 of the numerical control vertical lathe 20 along the x-axis direction meets the first precision requirement and whether the displacement precision of the machining tool 22 of the numerical control vertical lathe 20 along the z-axis direction meets the second precision requirement can be detected by using a coordinate measuring machine (CMM).

[0167] Further, the machining tool 22 of the numerical control vertical lathe 20 can be used to more accurately machine the to-be-repaired part 110, the machining precision of the to-be-repaired part 110 can be improved, and the reliability of the motor thrust disc 10 repair method can be improved.

[0168] Optionally, the detection of the numerical control vertical lathe 20 further includes:

[0169] S2035, detecting whether the axial runout of the workbench surface 21 reaches 0.01 mm.

[0170] S2036, detecting whether the radial runout of the workbench surface 21 reaches 0.01 mm.

[0171] In this way, the machining tool 22 of the numerical control vertical lathe 20 can be used to more accurately machine the to-be-repaired part 110, and the machining precision of the to-be-repaired part 110 can be improved.

[0172] Of course, the present application is not limited to this, and in some embodiments, please refer to Figure 8 According to the size precision requirement and roughness requirement of the to-be-repaired part 110 of the motor thrust disc 10, the step S230 of machining the to-be-repaired part 110 of the motor thrust disc 10 specifically includes:

[0173] S23001, according to the size precision requirement and roughness requirement of the to-be-repaired part 110 of the motor thrust disc 10, determining the target speed and target feed rate of the machining tool 22 of the numerical control vertical lathe 20.

[0174] S23002, dividing the roughness requirements corresponding to the plurality of to-be-repaired parts 110 into a plurality of roughness levels.

[0175] S23003, according to the roughness level corresponding to the to-be-repaired part 110, using the machining tool 22 of the numerical control vertical lathe 20 to machine the to-be-repaired part 110 at the target speed and target feed rate of the machining tool 22 of the numerical control vertical lathe 20, so that the size of the to-be-repaired part 110 meets the corresponding size precision requirement, and the roughness of the to-be-repaired part 110 of the motor thrust disc 10 meets the corresponding roughness requirement.

[0176] In some embodiments, before the motor thrust disc 10 is fixed, the motor thrust disc 10 repair method further includes:

[0177] S201, asFigure 7 and Figure 9 As shown, multiple support members 30 are fixed on the worktable 21 to jointly support the motor thrust plate 10. The motor thrust plate 10 is then fixed on the worktable 21 by the clamp 40, so that the axial direction of the motor thrust plate 10 is perpendicular to the worktable 21.

[0178] Optionally, the fixture 40 includes a plurality of chuck jaws 41 for fixing the motor thrust plate 10 to the worktable 21. The plurality of chuck jaws 41 are spaced apart around the motor thrust plate 10, and each chuck jaw 41 is movably disposed on the worktable 21 along the radial direction of the motor thrust plate 10. The position of the chuck jaw 41 relative to the worktable 21 along the radial direction of the motor thrust plate 10 can be adjusted according to the radial dimension of the motor thrust plate 10, so as to fix the motor thrust plate 10 to the worktable 21 using the plurality of chuck jaws 41. Of course, this application is not limited to this, and the fixture 40 may also include other structures capable of fixing the motor thrust plate 10 to the worktable 21.

[0179] S202. The tops of the multiple support members 30 are ground flat to form bearing surfaces 31 that are flush with each other and used to support the motor thrust plate 10, and the flatness of the bearing surfaces 31 meets the preset requirements.

[0180] Optionally, the support member 30 can be a shim, which makes it easy to grind the top of the support member 30 flat.

[0181] Optionally, the preset requirements include: the flatness of the bearing surface 31 is less than or equal to 0.01 mm.

[0182] In this way, multiple support members 30 can be used to support the motor thrust plate 10 well, improve the stability of the motor thrust plate 10, and also help improve the repair accuracy of the motor thrust plate 10.

[0183] It should be noted that, as Figure 7 and Figure 9 As shown, the top or bottom of the motor thrust plate 10 can be positioned upwards as needed for machining or measurement, to facilitate machining or measurement of the motor thrust plate 10. For example, if it is necessary to measure or machine the inner hole 111 or the outer cylindrical surface 112, the top of the motor thrust plate can be positioned upwards (e.g., Figure 7 As shown), if machining or measurement of the lower thrust surface 1142 is required, the bottom end of the motor thrust plate can be set upwards (e.g., Figure 9 (As shown).

[0184] In some embodiments, after step S230 of machining the repaired portion 110 of the motor thrust disk 10 according to the dimensional accuracy and roughness requirements of the repaired portion 110, the repair method of the motor thrust disk further includes:

[0185] S240, the to-be-repaired part 110 of the motor thrust disc 10 is detected, and according to the detection result of the to-be-repaired part 110 of the motor thrust disc 10, it is judged whether the size of the to-be-repaired part 110 of the motor thrust disc 10 meets the size accuracy requirement, and whether the roughness of the to-be-repaired part 110 of the motor thrust disc 10 meets the roughness requirement.

[0186] Optionally, as described above, the plurality of to-be-detected parts such as the inner hole 111, the outer cylindrical surface 112, the second cylindrical segment 114, the upper thrust surface 1141 and the lower thrust surface 1142 can be detected respectively.

[0187] After the to-be-repaired part 110 of the motor thrust disc 10 is repaired, the to-be-repaired part 110 of the motor thrust disc 10 is detected again, and the re-inspection can be used to better confirm whether the size of the to-be-repaired part 110 of the motor thrust disc 10 meets the size accuracy requirement, and whether the roughness of the to-be-repaired part 110 of the motor thrust disc 10 meets the roughness requirement, so as to make subsequent adjustments as needed, so that the size of the to-be-repaired part 110 of the motor thrust disc 10 meets the size accuracy requirement, and the roughness of the to-be-repaired part 110 of the motor thrust disc 10 meets the roughness requirement.

[0188] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0189] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A method for repairing a motor thrust plate, applied to the repair of a motor thrust plate, characterized in that, The method comprises the following steps: fixing the motor thrust disc; determining the part to be repaired of the motor thrust disc; processing the part to be repaired of the motor thrust disc according to the dimensional accuracy requirement and the roughness requirement of the part to be repaired of the motor thrust disc, so that the size of the part to be repaired of the motor thrust disc meets the dimensional accuracy requirement, and the roughness of the part to be repaired of the motor thrust disc meets the roughness requirement; The motor thrust disc comprises a plurality of parts to be detected, and the determination of the part to be repaired of the motor thrust disc specifically comprises: detecting the plurality of parts to be detected of the motor thrust disc respectively; if the part to be detected of the motor thrust disc does not meet the corresponding dimensional accuracy requirement and / or the corresponding roughness requirement, determining the part to be detected as the part to be repaired of the motor thrust disc; The plurality of parts to be detected comprises an inner hole provided through the motor thrust disc along the axial direction of the motor thrust disc, and an outer cylindrical surface arranged around the inner hole; the detection of the plurality of parts to be detected of the motor thrust disc respectively specifically comprises: detecting the radial size, roundness, cylindricity, taper and roughness of the hole wall of the inner hole; detecting the radial size, cylindricity, runout of the outer cylindrical surface relative to the inner hole and roughness of the outer cylindrical surface; The runout of the outer cylindrical surface relative to the inner hole refers to the concentricity and roundness of the outer cylindrical surface relative to the inner hole; The motor thrust disc comprises a first cylindrical segment and a second cylindrical segment connected along the axial direction of the motor thrust disc, and the radial size of the second cylindrical segment is greater than that of the first cylindrical segment; the inner hole penetrates through the first cylindrical segment and the second cylindrical segment along the axial direction of the motor thrust disc; the outer cylindrical surface is arranged on the outer periphery of the first cylindrical segment; along the radial direction of the second cylindrical segment, the part of the second cylindrical segment protruding out of the first cylindrical segment is provided with an upper thrust surface and a lower thrust surface, and the upper thrust surface and the lower thrust surface are arranged opposite to each other along the axial direction of the motor thrust disc; the plurality of parts to be detected comprises the second cylindrical segment, the upper thrust surface and the lower thrust surface, and the detection of the plurality of parts to be detected of the motor thrust disc further comprises: detecting the flatness and roughness of the upper thrust surface; detecting the flatness, roughness of the lower thrust surface and the parallelism of the lower thrust surface relative to the upper thrust surface; detecting the size of the second cylindrical segment along the radial direction of the second cylindrical segment and the roughness of the outer peripheral wall of the second cylindrical segment.

2. The method of repairing an electric machine thrust disc according to claim 1, characterized in that, The motor thrust disc has a plurality of parts to be repaired, and the processing of the part to be repaired of the motor thrust disc according to the dimensional accuracy requirement and the roughness requirement of the part to be repaired of the motor thrust disc specifically comprises: processing each part to be repaired according to the dimensional accuracy requirement and the roughness requirement corresponding to each part to be repaired, so that the size of the part to be repaired meets the corresponding dimensional accuracy requirement, and the roughness of the part to be repaired meets the corresponding roughness requirement.

3. The method of repairing an electric machine thrust disc according to claim 2, characterized in that, The method comprises the following steps: According to the size accuracy requirement and roughness requirement of the to-be-repaired part of the motor thrust disc, the to-be-repaired part of the motor thrust disc is processed, specifically including: The roughness requirements corresponding to a plurality of to-be-repaired parts are divided into a plurality of roughness levels; 4. The method of repairing an electric machine thrust disc according to claim 3, characterized in that, According to the roughness level corresponding to the to-be-repaired part, the to-be-repaired part is processed to make the size of the to-be-repaired part meet the corresponding size accuracy requirement, and the roughness of the to-be-repaired part reaches the corresponding roughness level. The method according to the roughness level corresponding to the to-be-repaired part, the to-be-repaired part is processed, specifically including:

5. The method of repairing an electric machine thrust disc according to claim 4, characterized in that, If the roughness level corresponding to the to-be-repaired part is a first roughness, the to-be-repaired part is processed in turn by fine turning, milligram processing, grinding and polishing. The method according to the roughness level corresponding to the to-be-repaired part, the to-be-repaired part is processed, further including: If the roughness level corresponding to the to-be-repaired part is a second roughness, the to-be-repaired part is processed in turn by fine turning, grinding and polishing; 6. The method of repairing an electric machine thrust disc according to claim 5, characterized in that, Wherein, the second roughness is greater than the first roughness. The method according to the roughness level corresponding to the to-be-repaired part, the to-be-repaired part is processed, further including: If the roughness level corresponding to the to-be-repaired part is a third roughness, the to-be-repaired part is processed by fine turning; If the roughness level corresponding to the to-be-repaired part is a fourth roughness, the to-be-repaired part is processed by rough turning; 7. The method of repairing a motor thrust disc according to any one of claims 1-6, wherein, Wherein, the fourth roughness is greater than the third roughness, and the third roughness is greater than the second roughness. The method for fixing the motor thrust disc, specifically including:

8. The method of repairing an electric machine thrust disc according to claim 7, characterized in that, The motor thrust disc is fixed on the workbench surface of the numerical control vertical lathe, and the axis direction of the motor thrust disc is perpendicular to the workbench surface. The numerical control vertical lathe includes a machining tool above the workbench surface, and the method for processing the to-be-repaired part of the motor thrust disc according to the size accuracy requirement and roughness requirement of the to-be-repaired part of the motor thrust disc, specifically including: According to the size accuracy requirement and roughness requirement of the to-be-repaired part of the motor thrust disc, the target speed and target feed amount of the machining tool of the numerical control vertical lathe are determined; 9. The method of repairing an electric machine thrust disc according to claim 8, characterized in that, The machining tool of the numerical control vertical lathe is used to process the to-be-repaired part of the motor thrust disc with the target speed and target feed amount of the machining tool of the numerical control vertical lathe.

10. The method of repairing an electric machine thrust disc according to claim 9, characterized in that, Before the machining tool of the numerical control vertical lathe is used to process the to-be-repaired part of the motor thrust disc, the motor thrust disc repair method further includes detecting the numerical control vertical lathe. The method for detecting the numerical control vertical lathe, specifically including: Detecting the perpendicularity of the movement of the machining tool of the numerical control vertical lathe along the z-axis direction relative to the workbench surface; 11. The method of repairing an electric machine thrust disc according to claim 10, characterized in that, Detecting the parallelism of the movement of the machining tool of the numerical control vertical lathe along the x-axis direction relative to the workbench surface. The method for detecting the numerical control vertical lathe, further including: Detect whether the displacement precision of the machining tool of the numerical control vertical lathe along the x-axis direction meets a first precision requirement; Detect whether the displacement precision of the machining tool of the numerical control vertical lathe along the z-axis direction meets a second precision requirement.

12. The method of repairing an electric machine thrust disc according to claim 7, characterized in that, Before the fixing of the motor thrust disc, the motor thrust disc repairing method further comprises: Fixing a plurality of supporting members on the workbench surface for jointly bearing the motor thrust disc; Grinding the top of each of the plurality of supporting members to form a bearing surface for bearing the motor thrust disc and arranged flush with each other, and making the flatness of the bearing surface meet a preset requirement.

13. The method of repairing an electric machine thrust disc according to any one of claims 1-6, characterized in that, After the machining of the to-be-repaired part of the motor thrust disc according to the size precision requirement and the roughness requirement of the to-be-repaired part of the motor thrust disc, the motor thrust disc repairing method further comprises: Detecting the to-be-repaired part of the motor thrust disc, and judging whether the size of the to-be-repaired part of the motor thrust disc meets the size precision requirement and whether the roughness of the to-be-repaired part of the motor thrust disc meets the roughness requirement according to the detection result of the to-be-repaired part of the motor thrust disc.

Images