CN113696097A - Steam turbine rotor journal mar grinding device - Google Patents
Steam turbine rotor journal mar grinding device Download PDFInfo
- Publication number
- CN113696097A CN113696097A CN202110895275.6A CN202110895275A CN113696097A CN 113696097 A CN113696097 A CN 113696097A CN 202110895275 A CN202110895275 A CN 202110895275A CN 113696097 A CN113696097 A CN 113696097A
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- Prior art keywords
- grinding
- sand
- steam turbine
- turbine rotor
- axial
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- 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
- 239000004576 sand Substances 0.000 claims abstract description 104
- 238000005192 partition Methods 0.000 claims abstract description 28
- 230000001502 supplementing effect Effects 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 9
- 238000005498 polishing Methods 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to a scratch grinding device for a steam turbine rotor shaft neck, which comprises an upper semicircular component and a lower semicircular component, wherein the semicircular components comprise a shell and a grinding frame; the grinding block between the axial partition plates is installed in the grinding frame at intervals, a grinding sand cavity is formed between the two adjacent grinding blocks, a sand supplementing opening corresponding to the grinding sand cavity is formed in the shell, and a sand supplementing device is installed at the sand supplementing opening. This application is semi-cylindrical shell through the setting, grind the frame, be formed with the grinding piece installation cavity that the interval set up between the axial baffle of grinding frame, grind the sand chamber, install the grinding piece that is located between two axial baffles in the grinding piece installation cavity, grind sand chamber accessible mend the sand mouth and pour into the grinding sand into, from this through the grinding piece that has fixed form, the grinding sand that has indefinite form grinds the journal surface, can show and improve grinding efficiency and guarantee journal surface grinding uniformity.
Description
Technical Field
The invention relates to a steam turbine maintenance technology, in particular to a scratch grinding device for a steam turbine rotor shaft neck.
Background
After a steam turbine of a power plant works for a long time, the surface of a rotor shaft neck is degraded in roundness due to abrasion and erosion, so that the rotor is not operated well, and the surface of the rotor shaft neck needs to be repaired and ground; in the conventional maintenance of the steam turbine rotor shaft neck, for more serious scratches, maintenance is usually carried out by adopting modes such as repair welding, manual electric grinding or angle grinding, manual grinding and the like; for slight scratches, the scratches can be processed by simple grinding; the manual grinding device for maintaining the rotor shaft neck is characterized in that a grinding cylinder is a cylinder body, the cylinder body of the grinding cylinder consists of two semi-cylinder bodies, two sides of the two semi-cylinder bodies are respectively connected with opposite flange plates, the flange plates are respectively provided with corresponding bolt holes, fixing bolts penetrate through the bolt holes to connect the two semi-cylinder bodies into a whole, the peripheral surfaces of the two semi-cylinder bodies are respectively welded with a plurality of rotating handles, the length direction of the rotating handles is along the diameter of the semi-cylinder bodies, the rotating handles are perpendicular to the peripheral surface of the semi-cylinder bodies, felt and abrasive cloth with uniform thickness are placed between the inner wall of the grinding cylinder and the rotor shaft neck, and the grinding surface of the abrasive cloth is in contact with the surface of the rotor shaft neck; the rotor shaft neck with scratches can be ground, the maintenance time is saved, and the maintenance quality and the working efficiency are improved. However, the manual polishing device disclosed in this document still has the problems of low polishing efficiency and poor polishing consistency of the journal surface, and needs to be improved.
Disclosure of Invention
The invention aims to provide a scratch grinding device for a steam turbine rotor shaft neck, which is used for solving the problems of low grinding efficiency and poor consistency of the existing manual grinding device.
In order to solve the problems, the invention provides a scratch grinding device for a steam turbine rotor shaft neck, which comprises an upper semicircular component and a lower semicircular component, wherein the semicircular components comprise a shell and a grinding frame, the shell and the grinding frame are both in a semicircular cylinder shape, the grinding frame is fixedly arranged on the annular inner wall of the shell, and the outer wall of the shell is provided with a plurality of rotating handles; the grinding frame comprises two annular end face baffles, two ends of each end face baffle are fixedly connected through an axial connecting plate, a plurality of axial partition plates are arranged between the two end face baffles, and the outer edges of the axial connecting plates and the axial partition plates are flush with the outer edges of the end face baffles; the thickness of the axial connecting plate and the axial partition plate along the radial direction of the grinding rack is smaller than that of the axial partition plate along the radial direction of the grinding rack; the grinding frame is internally provided with grinding blocks at intervals between the axial partition plates, a grinding sand cavity is formed between the two adjacent grinding blocks, the shell is provided with a sand supplementing opening corresponding to the grinding sand cavity, the sand supplementing opening is provided with a sand supplementing device, and the sand supplementing device is used for filling grinding sand into the grinding sand cavity through the sand supplementing opening.
The scratch grinding device for the steam turbine rotor shaft neck provided by the invention also has the following technical characteristics:
further, the axial partitions are uniformly obliquely arranged between the end baffles.
Further, the grinding block includes a first grinding portion located between the two axial partition plates, and two second grinding portions extending to radially inner edges of the axial partition plates.
Further, the sand supplementing device comprises a cylindrical sand supplementing tank, a sand injecting port connected with the sand supplementing port is formed in the lower end of the sand supplementing tank, a pressing plate is installed in the sand supplementing tank, a pressing device located on the upper side of the pressing plate is further arranged in the sand supplementing tank, and the pressing device presses downwards to enable the grinding sand on the lower side of the pressing plate to flow out through the sand injecting port.
Furthermore, a plurality of guide posts are arranged on the upper side of the pressing plate, the pressing device comprises an adjusting plate, an adjusting screw and an adjusting seat, the adjusting seat is fixedly installed on the upper edge of the sand replenishing tank, a threaded hole is formed in the middle of the adjusting seat, and the adjusting screw penetrates through the threaded hole; the adjusting plate is provided with a guide hole matched with the guide post, the guide post penetrates through the guide hole, and a pressure spring positioned between the pressure plate and the adjusting plate is sleeved on the guide post; the upper side of the adjusting plate is provided with a connecting seat, and the lower end of the adjusting screw rod is connected with the adjusting plate through the connecting seat and can rotate relative to the adjusting plate.
Furthermore, the lower side of the sand supplementing tank is also provided with a conical sand guiding part.
Further, the twist grip with grind the piece and correspond the setting just the twist grip's bottom be equipped with the liquid hole is annotated to the inboard intercommunication of shell, still install on the shell with annotate the overhead tank of liquid hole intercommunication, the grinding fluid is stored in the overhead tank.
Further, the pressure tank is a diaphragm type pressure tank or an air bag type pressure tank, and an arc-shaped connecting plate is arranged at the bottom of the pressure tank.
Furthermore, the two sides of the shell are also provided with connecting lug plates, the connecting lug plates are provided with a plurality of connecting holes, and the semicircular assemblies are fixedly connected through bolts.
The invention has the following beneficial effects: this application is semi-cylindrical shell through the setting, grind the frame, be formed with the grinding piece installation cavity that the interval set up between the axial baffle of grinding frame, grind the sand chamber, install the grinding piece that is located between two axial baffles in the grinding piece installation cavity, grind sand chamber accessible mend the sand mouth and pour into the grinding sand into, from this through the grinding piece that has fixed form, the grinding sand that has indefinite form grinds the journal surface, can show and improve grinding efficiency and guarantee journal surface grinding uniformity.
Drawings
FIG. 1 is a schematic structural diagram of a scratch grinding device for a steam turbine rotor journal according to an embodiment of the present invention;
FIG. 2 is a front view of the steam turbine rotor journal scoring and polishing apparatus of FIG. 1;
FIG. 3 is a schematic view of a scratch grinding device for a steam turbine rotor journal according to an embodiment of the present invention;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic structural diagram of a semicircular assembly in an embodiment of the present invention;
FIG. 6 is a schematic view of the semicircular assembly of FIG. 5 from another perspective;
FIG. 7 is a bottom view of the semi-circular assembly of FIG. 5;
FIG. 8 is a schematic structural diagram of a housing in an embodiment of the invention;
FIG. 9 is a schematic view of a polishing stand according to an embodiment of the present invention;
FIG. 10 is a schematic view of another perspective of a polishing pad in an embodiment of the invention;
FIG. 11 is a schematic structural diagram of a sand replenishing device according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a pressure tank in an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the embodiment of the steam turbine rotor journal scratch grinding device of the present invention as shown in fig. 1 to 12, the steam turbine rotor journal scratch grinding device includes an upper semicircular component and a lower semicircular component, and is characterized in that the semicircular components include a casing 10 and a grinding rack 20, the casing 10 and the grinding rack 20 are both in a semicircular cylinder shape, the grinding rack 20 is installed and fixed on an annular inner wall of the casing 10, and the outer wall of the casing 10 is provided with a plurality of rotating handles 30; the grinding frame 20 comprises two annular end face baffles 21, two ends of each end face baffle 21 are fixedly connected through an axial connecting plate 22, a plurality of axial partition plates 23 are arranged between the two end face baffles 21, and the outer edges of the axial connecting plates 22 and the axial partition plates 23 are flush with the outer edges of the end face baffles 21; the thickness of the axial connecting plate 22 and the axial partition plate 23 along the radial direction of the grinding rack 20 is smaller than that of the axial partition plate 21 along the radial direction of the grinding rack 20, so that the axial connecting plate 22 and the axial partition plate 23 cannot contact with the shaft journal 100 after the two semicircular assemblies are spliced; the grinding frame 20 is internally provided with grinding blocks 40 positioned between the axial partition plates 23 at intervals, a grinding sand cavity 201 is formed between two adjacent grinding blocks 40, the shell 10 is provided with a sand filling port 101 corresponding to the grinding sand cavity 201, the sand filling port 101 is provided with a sand filling device 50, and the sand filling device 50 is used for filling grinding sand 202 into the grinding sand cavity 201 through the sand filling port 101. The utility model provides a steam turbine rotor axle journal mar grinding device, the grinding piece is installed to the grinding piece installation intracavity between the axial baffle of grinding frame earlier when using, passes through bolted connection and holds the axle journal tightly with upper and lower two semicircle subassemblies again, then packs the grinding sand and carries out the shutoff to mending the sand mouth to each grinding sand chamber through mending the sand mouth, and this steam turbine rotor axle journal mar grinding device of accessible twist grip drive rotates and grinds the axle journal from this.
This application is semi-cylindrical shell through the setting, grind the frame, be formed with the grinding piece installation cavity that the interval set up between the axial baffle of grinding frame, grind the sand chamber, install the grinding piece that is located between two axial baffles in the grinding piece installation cavity, grind sand chamber accessible mend the sand mouth and pour into the grinding sand into, can select the grinding piece as required, the grinding sand, the accessible has the grinding piece of fixed form from this, the grinding sand that has indefinite form grinds the journal surface, can show improvement grinding efficiency and guarantee journal surface grinding uniformity.
In one embodiment of the present application, it is preferable that the axial partition 23 is uniformly and obliquely arranged between the end baffles 21, and specifically, as shown in fig. 9 and 10, the two ends of the axial partition 23 are not continuous and parallel to the axis of the grinding rack 20, so that the heat distribution generated by grinding during grinding can be improved, and the grinding uniformity of the journal surface can be improved.
In one embodiment of the present application, the grinding block 40 preferably comprises a first grinding portion 41 located between the two axial partition plates 23, and two second grinding portions 42 extending to the radially inner edge of the axial partition plates 23, thereby forming a grinding sand chamber 201 through the axial partition plates 23, the second grinding portions 42, and the housing 10, and the grinding sand 202 sufficiently wraps the journal 100 through the grinding block 40 to grind the surface of the journal 100.
In one embodiment of the present application, preferably, the sand replenishing device 50 includes a cylindrical sand replenishing tank 51, a sand injection port 52 connected to the sand replenishing port 101 is provided at a lower end of the sand replenishing tank 51, a pressing plate 53 is installed in the sand replenishing tank 51, and a pressing device located on an upper side of the pressing plate 53 is further provided in the sand replenishing tank 51, and the pressing device presses the pressing plate 53 downward so that the grinding sand 202 on a lower side of the pressing plate 53 flows out through the sand injection port 52, thereby filling the grinding sand cavity 201 with the grinding sand 202 through the sand replenishing device. Specifically, in this embodiment, by providing the pressing device located on the upper side of the pressing plate, the sand replenishment port can be plugged after the grinding sand cavity 201 is filled with the grinding sand 202, and the pressing device can also continuously replenish the grinding sand into the grinding sand cavity through the sand replenishment port during the grinding process.
In one embodiment of the present application, preferably, the upper side of the pressing plate 53 is provided with a plurality of guide posts 531, the pressing device includes an adjusting plate 54, an adjusting screw 55 and an adjusting seat 56, the adjusting seat 56 is fixedly installed on the upper edge of the sand make-up tank 51, a threaded hole is formed in the middle of the adjusting seat 56, and the adjusting screw 55 is inserted into the threaded hole; the adjusting plate 54 is provided with a guide hole matched with the guide column 531, the guide column 531 is arranged in the guide hole in a penetrating way, and the guide column 531 is also sleeved with a pressure spring 532 positioned between the pressure plate 53 and the adjusting plate 54; the upper side of the adjusting plate 54 is provided with a connecting seat 541, and the lower end of the adjusting screw 55 is connected with the adjusting plate 54 through the connecting seat 541 and can rotate relative to the adjusting plate 54; the pressing plate 53 can be pressed downwards by rotating the adjusting screw 55, so that the grinding sand is fully contacted with the surface of the shaft neck in the grinding process; the pressure between the grinding sand and the surface of the shaft neck can be conveniently adjusted to adjust the grinding mode. Preferably, the lower side of the sand make-up tank 51 is further provided with a tapered sand guide 511, thereby ensuring that the grinding sand reliably flows toward the sand injection port.
In one embodiment of the present application, it is preferable that the rotating handle 30 is disposed corresponding to the grinding block 40, the bottom end of the rotating handle 30 is provided with a liquid injection hole 31 communicated with the inner side of the housing 10, the housing 10 is further mounted with a pressure tank 32 communicated with the liquid injection hole 31, and the pressure tank 32 stores grinding liquid, so that the grinding liquid can be supplemented into the grinding rack 20 to protect the journal during grinding. Preferably, the pressure tank 32 is a diaphragm type pressure tank or a bladder type pressure tank, whereby the grinding stock can be continuously replenished with the grinding fluid during the grinding process; preferably, the bottom of the pressure tank 32 is provided with an arc-shaped connecting plate 33 to facilitate the installation and fixation of the pressure tank.
In one embodiment of the present application, preferably, two sides of the housing 10 are further provided with connecting ear plates 11, the connecting ear plates 11 are provided with a plurality of connecting holes 12, and the upper and lower semicircular assemblies are fixedly connected by bolts; thereby facilitating the installation and the disassembly.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The scratch grinding device for the steam turbine rotor shaft neck comprises an upper semicircular component and a lower semicircular component, and is characterized in that the semicircular components comprise a shell and a grinding frame, the shell and the grinding frame are both in a semicircular cylinder shape, the grinding frame is fixedly installed on the annular inner wall of the shell, and the outer wall of the shell is provided with a plurality of rotating handles; the grinding frame comprises two annular end face baffles, two ends of each end face baffle are fixedly connected through an axial connecting plate, a plurality of axial partition plates are arranged between the two end face baffles, and the outer edges of the axial connecting plates and the axial partition plates are flush with the outer edges of the end face baffles; the thickness of the axial connecting plate and the axial partition plate along the radial direction of the grinding rack is smaller than that of the axial partition plate along the radial direction of the grinding rack; the grinding frame is internally provided with grinding blocks at intervals between the axial partition plates, a grinding sand cavity is formed between the two adjacent grinding blocks, the shell is provided with a sand supplementing opening corresponding to the grinding sand cavity, the sand supplementing opening is provided with a sand supplementing device, and the sand supplementing device is used for filling grinding sand into the grinding sand cavity through the sand supplementing opening.
2. The steam turbine rotor journal scoring grinding device as recited in claim 1, wherein: the axial partitions are uniformly arranged obliquely between the end baffles.
3. The steam turbine rotor journal scoring grinding device as recited in claim 1, wherein: the grinding block includes a first grinding portion located between the two axial partition plates, and two second grinding portions extending to a radially inner edge of the axial partition plates.
4. The steam turbine rotor journal scoring grinding device as recited in claim 1, wherein: the sand supplementing device comprises a cylindrical sand supplementing tank, a sand injecting port connected with the sand supplementing port is arranged at the lower end of the sand supplementing tank, a pressing plate is installed in the sand supplementing tank, a pressing device located on the upper side of the pressing plate is further arranged in the sand supplementing tank, and the pressing device presses downwards the pressing plate to enable grinding sand on the lower side of the pressing plate to pass through the sand injecting port to flow out.
5. The steam turbine rotor journal scoring grinding device as recited in claim 4, wherein: the upper side of the pressing plate is provided with a plurality of guide posts, the pressing device comprises an adjusting plate, an adjusting screw and an adjusting seat, the adjusting seat is fixedly arranged on the upper edge of the sand replenishing tank, the middle part of the adjusting seat is provided with a threaded hole, and the adjusting screw penetrates through the threaded hole; the adjusting plate is provided with a guide hole matched with the guide post, the guide post penetrates through the guide hole, and a pressure spring positioned between the pressure plate and the adjusting plate is sleeved on the guide post; the upper side of the adjusting plate is provided with a connecting seat, and the lower end of the adjusting screw rod is connected with the adjusting plate through the connecting seat and can rotate relative to the adjusting plate.
6. The steam turbine rotor journal scoring grinding device as recited in claim 4, wherein: the lower side of the sand replenishing tank is also provided with a conical sand guide part.
7. The steam turbine rotor journal scoring grinding device as recited in claim 1, wherein: the twist grip with grind the piece and correspond the setting just twist grip's bottom be equipped with the liquid hole of annotating of the inboard intercommunication of shell, still install on the shell with annotate the overhead tank of liquid hole intercommunication, the grinding fluid is stored in the overhead tank.
8. The steam turbine rotor journal scoring grinding device as recited in claim 7, wherein: the pressure tank is a diaphragm type pressure tank or an air bag type pressure tank, and an arc-shaped connecting plate is arranged at the bottom of the pressure tank.
9. The steam turbine rotor journal scoring grinding device as recited in claim 1, wherein: the both sides of shell still are equipped with the connection otic placode, be equipped with a plurality of connecting holes on the connection otic placode, two upper and lower the semicircle subassembly passes through bolt fastening and links to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110895275.6A CN113696097B (en) | 2021-08-05 | 2021-08-05 | Scratch polishing device for shaft neck of steam turbine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110895275.6A CN113696097B (en) | 2021-08-05 | 2021-08-05 | Scratch polishing device for shaft neck of steam turbine rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113696097A true CN113696097A (en) | 2021-11-26 |
| CN113696097B CN113696097B (en) | 2023-11-07 |
Family
ID=78652139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110895275.6A Active CN113696097B (en) | 2021-08-05 | 2021-08-05 | Scratch polishing device for shaft neck of steam turbine rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113696097B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2210704A2 (en) * | 2009-01-22 | 2010-07-28 | Steinemann Technology AG | Roller bearing |
| CN201552419U (en) * | 2009-11-26 | 2010-08-18 | 兰州瑞迈克电力科技有限公司 | Pull belt device for large journal repair |
| CN201559117U (en) * | 2009-11-26 | 2010-08-25 | 兰州瑞迈克电力科技有限公司 | On-site grinding assembly for repairing large-size rotor shaft neck |
| CN202622548U (en) * | 2012-03-31 | 2012-12-26 | 中国一冶集团有限公司 | Fixture for grinding and polishing motor journal |
| KR20140142181A (en) * | 2014-10-20 | 2014-12-11 | 이석기계 (주) | Outside grinding device for circular objects |
| CN106925941A (en) * | 2017-03-13 | 2017-07-07 | 上海电气电站设备有限公司 | The positioning tool and prosthetic appliance of macrotype axes series parts axle journal reparation |
| KR101885988B1 (en) * | 2017-02-17 | 2018-08-06 | 한전케이피에스 주식회사 | Rotary journal surface grinding device |
| CN211661777U (en) * | 2020-03-16 | 2020-10-13 | 盛安建设集团有限公司 | Device for grinding a shaft journal |
| RU2734606C1 (en) * | 2019-08-27 | 2020-10-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" | Method of grinding spherical end face of taper rollers |
| CN112643531A (en) * | 2020-12-16 | 2021-04-13 | 华能伊敏煤电有限责任公司 | Grinding tool for small shaft disc of steam turbine rotor |
-
2021
- 2021-08-05 CN CN202110895275.6A patent/CN113696097B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2210704A2 (en) * | 2009-01-22 | 2010-07-28 | Steinemann Technology AG | Roller bearing |
| CN201552419U (en) * | 2009-11-26 | 2010-08-18 | 兰州瑞迈克电力科技有限公司 | Pull belt device for large journal repair |
| CN201559117U (en) * | 2009-11-26 | 2010-08-25 | 兰州瑞迈克电力科技有限公司 | On-site grinding assembly for repairing large-size rotor shaft neck |
| CN202622548U (en) * | 2012-03-31 | 2012-12-26 | 中国一冶集团有限公司 | Fixture for grinding and polishing motor journal |
| KR20140142181A (en) * | 2014-10-20 | 2014-12-11 | 이석기계 (주) | Outside grinding device for circular objects |
| KR101885988B1 (en) * | 2017-02-17 | 2018-08-06 | 한전케이피에스 주식회사 | Rotary journal surface grinding device |
| CN106925941A (en) * | 2017-03-13 | 2017-07-07 | 上海电气电站设备有限公司 | The positioning tool and prosthetic appliance of macrotype axes series parts axle journal reparation |
| RU2734606C1 (en) * | 2019-08-27 | 2020-10-21 | федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный технический университет" | Method of grinding spherical end face of taper rollers |
| CN211661777U (en) * | 2020-03-16 | 2020-10-13 | 盛安建设集团有限公司 | Device for grinding a shaft journal |
| CN112643531A (en) * | 2020-12-16 | 2021-04-13 | 华能伊敏煤电有限责任公司 | Grinding tool for small shaft disc of steam turbine rotor |
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| Publication number | Publication date |
|---|---|
| CN113696097B (en) | 2023-11-07 |
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Address after: No. 177 Fourth Street, Zhengzhou Economic and Technological Development Zone, Zhengzhou City, Henan Province, 450000 Applicant after: State Power Investment Henan Engineering Operation and Maintenance Co.,Ltd. Address before: No.177, 4th Street, economic and Technological Development Zone, Guancheng Hui District, Zhengzhou City, Henan Province, 450000 Applicant before: State power investment Henan Electric Power Engineering Co.,Ltd. |
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