CN114309739A - Machining process for thrust tile base of shielding motor - Google Patents
Machining process for thrust tile base of shielding motor Download PDFInfo
- Publication number
- CN114309739A CN114309739A CN202111544480.4A CN202111544480A CN114309739A CN 114309739 A CN114309739 A CN 114309739A CN 202111544480 A CN202111544480 A CN 202111544480A CN 114309739 A CN114309739 A CN 114309739A
- Authority
- CN
- China
- Prior art keywords
- thrust tile
- tile base
- thrust
- base
- foundation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003754 machining Methods 0.000 title claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 15
- 238000003801 milling Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Landscapes
- Machine Tool Units (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a machining process of a thrust tile base of a shielding motor, which is characterized in that a positioning tool is adopted to position and clamp the thrust tile base, a plane on one side is machined, the position of the thrust tile base is adjusted after the plane on one side is machined, the position of the clamping tool is repositioned, and the plane on the other side is machined, so that the machining of the spatial angle size of the thrust tile base is completed on the same clamping mould. The invention can realize the processing of the thrust tile base on the same positioning fixture, ensure the angle size and tolerance required by a drawing, avoid the problem of subsequent assembly caused by the fact that the space size cannot be measured, and eliminate the problem of incapability of alignment after the fixture is installed.
Description
The technical field is as follows:
the invention relates to a machining process for a thrust tile base of a shielding motor.
Background art:
with the continuous improvement of the safety of the nuclear power plant, a primary loop reactor coolant pump requires maintenance-free, leakage-free and long service life, and a shielding motor with the characteristic is widely used. In order to realize the purpose, the service life of the bearing of the domestic shielding motor product is designed from thousands of hours to tens of thousands of hours or even higher operation time, the establishment of a water film is the basis of the reliable operation of the bearing, this requires a higher precision of manufacture, a more accurate indexing, and a more critical role for the thrust bearing as a support, therefore, the manufacturing of the thrust bearing is the key of the manufacturing of the bearing of the shielding motor, so in order to improve the precision of the thrust bearing, the processing and the graduation of the thrust shoe base are undoubtedly the high points which are not wound, while the traditional processing mode adopts the integral processing disc, then equipment such as milling machine, linear cutting will close the seam face processing and form according to marking off benchmark again, and this kind of processing can appear because the influence of cutting force leads to the graduation inaccurate, and every tile bearing capacity is different, finally leads to the rotor to move unstably on the bearing to cause the main pump motor vibration to increase, reduce the operation life-span. Aiming at the current situation, a new process is urgently needed to solve the problems of the traditional processing process,
the invention content is as follows:
the invention relates to a machining process of a thrust tile base of a shielding motor, which realizes that 8 thrust tile bases are machined on the same positioning mould, ensures the straightness of a joint surface, simultaneously ensures the same graduation of each tile, eliminates different influences of the bearing capacity of a thrust bearing caused by different graduations, and improves the service life of the bearing, even the whole operation. The scheme of the invention is as follows: a machining process of a thrust shoe of a shielded motor comprises the following steps:
a) cleaning the thrust tile base (6) and checking the surface state without collision damage;
b) placing the thrust tile base (6) on the foundation plate (1), and positioning the pin hole position of the thrust tile base (6) by using a positioning pin (9);
c) screwing two fixing pins (7) into the foundation plate (1), enabling the fixing pins (7) to be in contact with the tile foundation (6), and screwing a set screw (8) into the fixing pins (7);
d) adjusting the position of the thrust tile base (6) by adopting a set screw (8) to ensure that the length of the thrust tile base (6) extending out of the edge part of the foundation plate (1) is consistent front and back, and fastening the set screw (8);
e) the pressing plate (4) is placed on the surface of the thrust tile base (6) and fixed by the screw (5) without gouging the surface of the thrust tile base (6);
f) placing a foundation plate (1) assembled with a thrust tile base (6) on a milling machine workbench, taking the side surface of the foundation plate (1) as a reference, measuring the plane run-out value of one side of the thrust tile base (6) within 0.02mm by using a dial indicator as a reference, and fixing the thrust tile base on the milling machine workbench by adopting a sliding block (3) and a screw (2);
g) machining the side surface of the thrust tile foundation (6) by taking the side surface of the foundation plate (1) as a machining reference, and machining the side surface of the thrust tile foundation (6) when the clearance between the foundation plate (1) and a cutter is adjusted to be 0.5 mm;
h) after the plane of one side of the thrust tile base (6) is processed, adjusting the position of the thrust tile base 6, enabling the plane of the other side of the thrust tile base 6 to face outwards, assembling according to the modes of a), b), c), d), e) and f), and processing the plane of the other side of the thrust tile base (6) according to the step g); i) And sequentially processing 8 thrust tile bases (6) according to a), b), c), d), e), f), g) and h).
The invention has the technical effects that:
according to the invention, the conventional machining mode of the thrust tile base is changed, so that the purposes of horizontal straightness of the side surface of the thrust tile base and accurate indexing of the fan-shaped block are achieved, the assembly requirement of the thrust tile base is met, and the effect of stable and reliable operation of the shielding motor is achieved. The traditional machining mode utilizes the whole machining mode to process two side surfaces by scribing, so that the graduation of the fan-shaped thrust shoe base is not uniform, if the machining mode is simply utilized by a numerical control milling machine, after one side is aligned and machined, the other side of the machining surface cannot be positioned and aligned, scribing is also needed, and the error is very large; the thrust shoe base processed by the method can ensure that the side surface of each thrust shoe base is level in straightness, quick in fan shape and consistent in angle, is fast in mounting and clamping, improves the manufacturing efficiency, and can mount and clamp a plurality of thrust shoe bases once if the bottom plate is processed to be large enough, so that the aim of mass production of a production line can be achieved. The thrust tile base processed by the method can ensure that the bearing capacity of each tile base is consistent after assembly, the problem of linear centrifugal force caused by eccentric operation can not occur during operation, the gap of each tile base processed by the method can be ensured to be consistent, a water film is uniformly established, and water film oscillation caused by nonuniform gap is avoided, so that the operation vibration and noise of a shielding motor are reduced, the operation reliability of the shielding motor is improved, the aims of damping and reducing noise of the shielding motor are fulfilled, and maintenance-free, safe and reliable operation is realized
In view of the technical scheme, the process method for integrally processing the two side surfaces of the thrust tile base by utilizing the positioning mould on the milling machine is adopted, and a new process for integrally processing the two side surfaces of the thrust tile base is determined by groping through tool design, adjustment, simulation piece verification and final size measurement, namely, the thrust tile base is positioned on the mould, and the positioning mould is aligned and fixed on the worktable, can ensure that the straightness of the side surface of each thrust shoe base is horizontal, the fan-shaped quick angles are consistent, the assembling and the clamping are quick, the manufacturing efficiency is improved, if the bottom plate is processed to be large enough, a plurality of thrust tile bases can be clamped at one time, the aim of production line mass production can be realized, and according to the actual size and the size requirement of the thrust tile base of the product, and (4) carrying out process refinement on the basis of the simulation piece, and summarizing a set of complete machining process method for the thrust tile base of the shielding motor to guide production. The machining process of the shielding motor thrust tile base is verified on simulation pieces with similar sizes, is applied to multiple products, is good in using effect, and achieves the expected effect of the products.
The invention adopts a special positioning mould, and processes under the same working condition through a positioning reference, thereby ensuring that the processing efficiency is improved, and the tile base graduation of the thrust tile is accurate, thereby ensuring that the bearing capacity of each thrust tile is the same, prolonging the service life of the bearing, reducing the operation vibration and further improving the operation time of the whole machine. In order to ensure the manufacturing precision of the thrust bearing of the shielding motor, a new machining process of the thrust tile base of the shielding motor is needed.
Description of the drawings:
fig. 1 is a schematic view of the left side machining of a thrust shoe base.
FIG. 2 is a sectional view taken along line A-A of FIG. 1
FIG. 3 is a cross-sectional view of FIG. 2
FIG. 4 is a schematic view of the right side of the thrust shoe base
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4
Wherein: the device comprises a foundation plate 1, a sliding block 2, screws 3, a pressing plate 4, bolts 5, a thrust tile base 6, fixing pins 7, fastening screws 8 and positioning pins 9.
The specific implementation mode is as follows:
a machining process of a thrust shoe of a shielded motor comprises the following steps:
a) cleaning the thrust tile base 6, and checking the surface state without collision damage;
b) as shown in fig. 1, a thrust pad shoe base 6 is placed on a base plate 1, and a positioning pin 9 is adopted to position the pin hole position of the thrust pad shoe base 6;
c) screwing two fixing pins 7 into the foundation plate 1, contacting the fixing pins 7 with the tile foundation 6, and screwing a set screw 8 into the fixing pins 7;
d) adjusting the position of the thrust tile base 6 by adopting a set screw 8 to ensure that the length of the thrust tile base 6 extending out of the edge part of the foundation plate 1 is consistent front and back, and fastening the set screw 8;
e) as shown in fig. 2, the pressing plate 4 is placed on the surface of the thrust tile base 6 and fixed by the screw 5, so that the surface of the thrust tile base 6 is not damaged;
f) placing a foundation plate 1 assembled with a thrust tile foundation 6 on a milling machine workbench, taking the side surface of the foundation plate 1 as a reference, measuring the plane run-out value of one side of the thrust tile foundation 6 by using a dial indicator within 0.02mm as a reference, and fixing the thrust tile foundation 6 on the milling machine workbench by using a sliding block 3 and a screw 2 as shown in figure 3;
g) machining the side surface of the thrust tile foundation 6 by taking the side surface of the foundation plate 1 as a machining reference, and machining the side surface of the thrust tile foundation 6 when the clearance between the foundation plate 1 and a cutter is adjusted to be 0.5 mm;
h) after the plane on one side of the thrust tile base 6 is processed, as shown in fig. 4 and 5, the position of the thrust tile base 6 is adjusted, the plane on the other side of the thrust tile base 6 faces outwards, the assembly is carried out according to the modes of a), b), c), d), e) and f), and the plane on the other side of the thrust tile base (6) is processed according to the step g);
i) and sequentially processing 8 thrust tile bases 6 according to a), b), c), d), e), f), g) and h).
Claims (1)
1. A machining process for a thrust tile base of a shielding motor is characterized by comprising the following steps:
a) cleaning the thrust tile base (6) and checking the surface state without collision damage;
b) placing the thrust tile base (6) on the foundation plate (1), and positioning the pin hole position of the thrust tile base (6) by using a positioning pin (9);
c) screwing two fixing pins (7) into the foundation plate (1), enabling the fixing pins (7) to be in contact with the tile foundation (6), and screwing a set screw (8) into the fixing pins (7);
d) adjusting the position of the thrust tile base (6) by adopting a set screw (8) to ensure that the length of the thrust tile base (6) extending out of the edge part of the foundation plate (1) is consistent front and back, and fastening the set screw (8);
e) the pressing plate (4) is placed on the surface of the thrust tile base (6) and fixed by the screw (5) without gouging the surface of the thrust tile base (6);
f) placing a foundation plate (1) assembled with a thrust tile base (6) on a milling machine workbench, taking the side surface of the foundation plate (1) as a reference, measuring the plane run-out value of one side of the thrust tile base (6) within 0.02mm by using a dial indicator as a reference, and fixing the thrust tile base on the milling machine workbench by adopting a sliding block (3) and a screw (2);
g) machining the side surface of the thrust tile foundation (6) by taking the side surface of the foundation plate (1) as a machining reference, and machining the side surface of the thrust tile foundation (6) when the clearance between the foundation plate (1) and a cutter is adjusted to be 0.5 mm;
h) after the plane of one side of the thrust tile base (6) is processed, adjusting the position of the thrust tile base 6, enabling the plane of the other side of the thrust tile base 6 to face outwards, assembling according to the modes of a), b), c), d), e) and f), and processing the plane of the other side of the thrust tile base (6) according to the step g);
i) and sequentially processing 8 thrust tile bases (6) according to a), b), c), d), e), f), g) and h).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111544480.4A CN114309739B (en) | 2021-12-16 | 2021-12-16 | Processing technology of thrust tile base of shielding motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111544480.4A CN114309739B (en) | 2021-12-16 | 2021-12-16 | Processing technology of thrust tile base of shielding motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114309739A true CN114309739A (en) | 2022-04-12 |
| CN114309739B CN114309739B (en) | 2023-09-29 |
Family
ID=81052028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111544480.4A Active CN114309739B (en) | 2021-12-16 | 2021-12-16 | Processing technology of thrust tile base of shielding motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114309739B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551463A (en) * | 2023-06-19 | 2023-08-08 | 北京新风航天装备有限公司 | An assembly tooling and assembly method of an angular taper hole fit component |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2908027Y (en) * | 2006-05-09 | 2007-06-06 | 东方汽轮机厂 | Fast aligning tool for tilting-type tile bearing broken tiles |
| JP2009115131A (en) * | 2007-11-02 | 2009-05-28 | Nachi Fujikoshi Corp | Spindle device using hydrodynamic bearing and radial hydrodynamic bearing |
| CN203792020U (en) * | 2014-03-17 | 2014-08-27 | 沈阳黎航发石化机械设备制造有限公司 | Device for machining eccentric broken tiles |
| CN104476380A (en) * | 2014-12-17 | 2015-04-01 | 哈尔滨电气动力装备有限公司 | Cylindrical surface grinding process for graphite thrust pad of thrust bearing of shielded motor |
| CN206436123U (en) * | 2016-12-16 | 2017-08-25 | 湖南航天磁电有限责任公司 | A kind of magnetic shoe reference plane is ground positioning tool |
| CN207043801U (en) * | 2017-08-23 | 2018-02-27 | 哈尔滨汽轮机厂有限责任公司 | A fixture for milling steps on both sides of a thrust pad |
| CN208099846U (en) * | 2018-03-30 | 2018-11-16 | 中国船舶重工集团公司第十二研究所 | A kind of processing unit (plant) of tilting pad eccentric inner hole |
| CN208575550U (en) * | 2018-06-19 | 2019-03-05 | 沈阳黎航发石化机械设备制造有限公司 | A kind of processing curve bearing shell tile fragment dedicated positioning device |
| CN110501102A (en) * | 2019-09-05 | 2019-11-26 | 东方电气集团东方电机有限公司 | A kind of production and application method of thrust loading test watt |
| CN210388396U (en) * | 2019-09-04 | 2020-04-24 | 成都英诺思科技有限公司 | Slips piece milling flutes frock with adjustable |
| CN213795435U (en) * | 2020-12-07 | 2021-07-27 | 浙江彰贵轴承科技有限公司 | High-speed tilting guide shoe tile surface machining tool |
| CN113427208A (en) * | 2021-06-11 | 2021-09-24 | 中广核核电运营有限公司 | Method for machining sealing bush of nuclear power generator |
| CN113458818A (en) * | 2021-05-21 | 2021-10-01 | 岳阳大陆激光技术有限公司 | Steam turbine thrust disc processing and measuring device |
| CN214351036U (en) * | 2021-03-10 | 2021-10-08 | 哈尔滨汽轮机厂有限责任公司 | Clamping tool for machining appearance of thrust pad |
| CN214922314U (en) * | 2021-04-25 | 2021-11-30 | 哈尔滨汽轮机厂有限责任公司 | Clamping tool for turning inner hole of tilting pad |
-
2021
- 2021-12-16 CN CN202111544480.4A patent/CN114309739B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2908027Y (en) * | 2006-05-09 | 2007-06-06 | 东方汽轮机厂 | Fast aligning tool for tilting-type tile bearing broken tiles |
| JP2009115131A (en) * | 2007-11-02 | 2009-05-28 | Nachi Fujikoshi Corp | Spindle device using hydrodynamic bearing and radial hydrodynamic bearing |
| CN203792020U (en) * | 2014-03-17 | 2014-08-27 | 沈阳黎航发石化机械设备制造有限公司 | Device for machining eccentric broken tiles |
| CN104476380A (en) * | 2014-12-17 | 2015-04-01 | 哈尔滨电气动力装备有限公司 | Cylindrical surface grinding process for graphite thrust pad of thrust bearing of shielded motor |
| CN206436123U (en) * | 2016-12-16 | 2017-08-25 | 湖南航天磁电有限责任公司 | A kind of magnetic shoe reference plane is ground positioning tool |
| CN207043801U (en) * | 2017-08-23 | 2018-02-27 | 哈尔滨汽轮机厂有限责任公司 | A fixture for milling steps on both sides of a thrust pad |
| CN208099846U (en) * | 2018-03-30 | 2018-11-16 | 中国船舶重工集团公司第十二研究所 | A kind of processing unit (plant) of tilting pad eccentric inner hole |
| CN208575550U (en) * | 2018-06-19 | 2019-03-05 | 沈阳黎航发石化机械设备制造有限公司 | A kind of processing curve bearing shell tile fragment dedicated positioning device |
| CN210388396U (en) * | 2019-09-04 | 2020-04-24 | 成都英诺思科技有限公司 | Slips piece milling flutes frock with adjustable |
| CN110501102A (en) * | 2019-09-05 | 2019-11-26 | 东方电气集团东方电机有限公司 | A kind of production and application method of thrust loading test watt |
| CN213795435U (en) * | 2020-12-07 | 2021-07-27 | 浙江彰贵轴承科技有限公司 | High-speed tilting guide shoe tile surface machining tool |
| CN214351036U (en) * | 2021-03-10 | 2021-10-08 | 哈尔滨汽轮机厂有限责任公司 | Clamping tool for machining appearance of thrust pad |
| CN214922314U (en) * | 2021-04-25 | 2021-11-30 | 哈尔滨汽轮机厂有限责任公司 | Clamping tool for turning inner hole of tilting pad |
| CN113458818A (en) * | 2021-05-21 | 2021-10-01 | 岳阳大陆激光技术有限公司 | Steam turbine thrust disc processing and measuring device |
| CN113427208A (en) * | 2021-06-11 | 2021-09-24 | 中广核核电运营有限公司 | Method for machining sealing bush of nuclear power generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116551463A (en) * | 2023-06-19 | 2023-08-08 | 北京新风航天装备有限公司 | An assembly tooling and assembly method of an angular taper hole fit component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114309739B (en) | 2023-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114309739B (en) | Processing technology of thrust tile base of shielding motor | |
| CN113665009B (en) | Wire bow parameter monitoring device for multi-wire cutting machine | |
| CN109834481A (en) | A kind of positioning device and localization method for processing steam turbine inner gland segmental arc | |
| CN114192844B (en) | Aviation multi-lug high-precision full-jump machine processing tool and processing inspection method | |
| CN113399947B (en) | Pulley bracket machining clamp and machining method | |
| CN210475699U (en) | Clamp for broaching mortise sample block | |
| CN115157122B (en) | Grinding method of a jig used for grinding the upper yoke plate of the second-stage guide vane segment of a gas turbine | |
| CN219665827U (en) | Quick positioning and clamping tool for boring precise hole | |
| CN218822105U (en) | Auxiliary detection device for workpiece quality inspection | |
| CN211103939U (en) | Multifunctional machining measuring tool | |
| CN210996725U (en) | Rotor milling jig | |
| CN212620470U (en) | Heating disc assembly quality inspection and debugging tool in semiconductor equipment | |
| CN209578897U (en) | A kind of positioning device for processing steam turbine inner gland segmental arc | |
| CN116276205A (en) | Case passing positioning fixture and case positioning method | |
| CN211783349U (en) | Axle type double-key-groove symmetry degree checking fixture | |
| CN114589337A (en) | Clamping device for machining central groove of switch mounting plate and machining method | |
| CN223820111U (en) | Key groove positioning tool for machining shaft parts | |
| CN223820099U (en) | Milling thermocouple groove jig | |
| CN103817492B (en) | Planer-type scalable measuring machine processing method | |
| CN112318166A (en) | Shifting fork milling machine fixture | |
| CN220944143U (en) | Workpiece clamp beneficial to machining | |
| CN221495110U (en) | Precise guide rail inclined plane processing tool | |
| CN216746052U (en) | Rotation platform module of flatness detection machine | |
| CN222754862U (en) | Clamping head structure for metal rod processing | |
| CN223684956U (en) | Adjustable device of flower disc location benchmark |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |