CN114211285A - On-site repair machine tool for machining generator large shaft after laser cladding - Google Patents

On-site repair machine tool for machining generator large shaft after laser cladding Download PDF

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Publication number
CN114211285A
CN114211285A CN202111420825.5A CN202111420825A CN114211285A CN 114211285 A CN114211285 A CN 114211285A CN 202111420825 A CN202111420825 A CN 202111420825A CN 114211285 A CN114211285 A CN 114211285A
Authority
CN
China
Prior art keywords
slewing bearing
machining
outer ring
supporting part
gear
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.)
Pending
Application number
CN202111420825.5A
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Chinese (zh)
Inventor
姜伟
张天艺
郑颖
裘信国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN202111420825.5A priority Critical patent/CN114211285A/en
Publication of CN114211285A publication Critical patent/CN114211285A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P23/00Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/38Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
    • B23Q5/40Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw

Abstract

A on-spot restoration lathe that is used for generator main shaft to carry out machining behind laser cladding belongs to generator main shaft and restores lathe technical field. The machining tool comprises a left rotary supporting part, a right rotary supporting part, a driving transmission assembly, a driven transmission assembly and a tool rest, wherein the left rotary supporting part and the right rotary supporting part of the machining tool are arranged oppositely, the driving transmission assembly and the driven transmission assembly of the machining tool are arranged on the left rotary supporting part and the right rotary supporting part respectively, the tool rest is arranged between the left rotary supporting part and the right rotary supporting part, the machining tool is arranged on the tool rest, and the machining tool is in transmission connection with the driven transmission assembly. The device can finish the carrying, assembling, positioning and machining of the machine tool, namely the subsequent disassembly in a short time, can directly carry out the machining such as turning, grinding and the like on the welded shaft neck at the original position, restores the original shape, does not need to disassemble and transport the large shaft back to a factory, does not need the large shaft to do rotary motion, and saves manpower, material resources and time cost.

Description

On-site repair machine tool for machining generator large shaft after laser cladding
Technical Field
The invention belongs to the technical field of generator large shaft repairing machine tools, and particularly relates to a field repairing machine tool for machining a generator large shaft after laser cladding.
Background
The large shaft refers to the journal of a large-diameter sliding bearing with the diameter of 350-6000mm, such as the journal of a power station steam turbine and the journal of a heavy-duty diesel engine. In recent years, the energy industry has been developed vigorously in countries to produce large quantities of rotor shafts for power transmission from generators, where after a period of operation, such journals typically have a degree of wear at the journal where the bearing is mounted, requiring regular maintenance.
In modern repair technologies, conventional repair technologies include welding repair, spraying, electroplating, spray welding, gluing, glue repair, metal fastening methods and the like, and materials are usually added and then reduced. In the 'material increase' stage, the laser cladding technology is a relatively mature field repair technology, and the laser cladding technology is increasingly adopted for the field repair of the large shaft in the future. However, the subsequent machining level after cladding is a factor mainly determining whether the quality of the original of the generator set can be restored, such as the machining precision, the dimensional precision and the roughness of the repair shaft. It is necessary to develop a repair machine dedicated to the subsequent "reduction" phase of the large shaft.
In the repair of heavy mechanical equipment such as a large generator, a large amount of manpower, material resources and time cost are generated in the process no matter the large shaft is dismantled or is transported to a specific processing workshop for repair.
Disclosure of Invention
In view of the above problems in the prior art, an object of the present invention is to provide a field repair machine tool for laser cladding machining of a generator main shaft, which can complete the transportation, assembly, positioning, machining and subsequent disassembly of the machine tool in a short time by using a small amount of manpower and material resources, so as to restore the worn part of the main shaft to the previous delivery accuracy.
The invention provides the following technical scheme: a field repair machine tool for machining after laser cladding of a large shaft of a generator comprises a left rotary supporting part, a right rotary supporting part, a driving transmission assembly, a driven transmission assembly and a tool rest, wherein the left rotary supporting part and the right rotary supporting part are arranged oppositely, cross roller bearing structures are adopted, counterweights are arranged on the left rotary supporting part and the right rotary supporting part, the driving transmission assembly and the driven transmission assembly are respectively arranged on the left rotary supporting part and the right rotary supporting part, the tool rest is arranged between the left rotary supporting part and the right rotary supporting part, a machining tool is arranged on the tool rest and is in transmission connection with the driven transmission assembly, and a group of positioning clamping structures used for clamping the large shaft are arranged on the inner sides of the left rotary supporting part and the right rotary supporting part.
Preferably, the left slewing bearing comprises an annular left slewing bearing outer ring and an annular left slewing bearing inner ring, a group of rollers are arranged between the left slewing bearing outer ring and the left slewing bearing inner ring, and the rollers are separated by a positioning frame; the outer ring of the left slewing bearing and the inner ring of the left slewing bearing are of split structures and are connected by a connecting plate and a tension bolt.
Preferably, the right slewing bearing comprises an annular right slewing bearing inner ring and an annular right slewing bearing outer ring, a group of rollers are also arranged between the right slewing bearing inner ring and the right slewing bearing outer ring, and the rollers are separated by a positioning frame; the inner ring of the right slewing bearing and the outer ring of the annular right slewing bearing are of split structures and are connected by a connecting plate and a tension bolt.
Preferably, the outer ring of the left slewing bearing is provided with a tooth structure, and the inner ring of the right slewing bearing is provided with a segmented rack.
Preferably, a V-shaped raceway is arranged between the left slewing bearing outer ring and the left slewing bearing inner ring and between the right slewing bearing inner ring and the right slewing bearing outer ring, and the rollers are arranged in the raceways in a crossed manner.
Preferably, the driving transmission assembly comprises a motor, a speed reducer and a first gear, the output end of the motor is connected with the input end of the speed reducer through a coupler inside a motor base, the first gear is arranged at the output end of the speed reducer and meshed with the outer ring of the left slewing bearing, the speed reducer is fixedly arranged on the inner ring of the left slewing bearing through a support frame, and a baffle is arranged on the outer side of the speed reducer.
Preferably, the driven transmission assembly comprises a gear set, a second gear and a gearbox, the gearbox is arranged on the outer ring of the right slewing bearing, an input shaft of the gearbox is connected with the second gear, the gear set is hinged to the outer ring of the right slewing bearing to serve as a planet gear, the gear set is formed by fixedly connecting a large gear and a small gear, the large gear is meshed with the segmented rack, and the small gear is meshed with the second gear.
Preferably, the tool rest is arranged between the left slewing bearing outer ring and the right slewing bearing outer ring, a machining tool is movably arranged on the tool rest, and the machining tool is connected with the output end of the gearbox through a lead screw.
Preferably, the positioning and clamping structure comprises a positioning and clamping screw rod and a top block, the top of the upper end of the positioning and clamping screw rod is inserted in a conical groove in the inner side wall of the inner ring of the left slewing bearing or the inner ring of the right slewing bearing in a matching manner, the lower end of the positioning and clamping screw rod is connected with the top block through threads, the lower end face of the top block is arranged in a manner of being tightly attached to the large shaft, and the lower end face of the top block is of a V-shaped structure and can be matched with the outer side face of the large shaft.
Preferably, a group of machine tool connecting rods are arranged between the left slewing bearing outer ring and the right slewing bearing outer ring, and the balance weights are arranged on the left slewing bearing outer ring and the right slewing bearing outer ring.
By adopting the technology, compared with the prior art, the invention has the following beneficial effects:
1) the device can finish the carrying, assembling, positioning and machining of the machine tool, namely the subsequent disassembly, in a short time, can directly carry out turning and grinding on the welded shaft neck at the original position to repair the original shape, does not need to disassemble and transport the large shaft back to a factory, does not need the large shaft to do rotary motion, and thus can greatly save manpower, material resources and time cost and avoid unnecessary waste of resources;
2) the left and right rotary supporting members of the invention adopt a split type crossed roller rotary supporting structure, the rolling bodies are rollers, and the roller paths adopt V-shaped, thus ensuring that the inner and outer ring roller paths and the rollers are in line contact, keeping stable track during movement and preventing the extrusion deformation and failure of the rollers during movement; the crossed roller has good hardness and rigidity, can bear larger radial and axial load impact at the same time, can obtain higher-precision rotary motion after being applied with prepressing, is convenient to operate and easier to mount, and greatly reduces the mounting space;
3) the device of the invention reduces the axial size of the machine tool as much as possible under the condition of not shortening the maximum processing length, and radially arranges the motor, the gearbox and the slewing bearing as much as possible, so that the machine tool can deal with a relatively narrow working space;
4) according to the invention, different processing requirements can be realized by replacing the tool rests with different lengths, and the processing tool can adopt a cutter, a grinding wheel and the like to finish various modern processing schemes such as grinding, milling, planing, special processing and the like, so that the surface of the shaft body has higher precision and better repairing effect.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic structural diagram of a half-turn of the outer ring of the left slewing bearing of the present invention;
FIG. 3 is a schematic view of a half-turn structure of the inner ring of the left slewing bearing of the present invention;
FIG. 4 is a schematic view of a planetary gear train of the present invention;
FIG. 5 is a schematic structural view of the stand according to the present invention;
fig. 6 is a schematic view of the internal structure of the transmission according to the present invention.
In the figure: 1. a motor; 2. a motor base; 3. a speed reducer; 4. a support frame; 5. a first gear; 6. a baffle plate; 7. a left slewing bearing outer ring; 8. a left slewing bearing inner ring; 9. a connecting plate; 10. positioning and clamping the screw rod; 11. a top block; 12. a large shaft; 13. a positioning frame; 14. a roller; 15. tightening the bolts; 16. a machine tool connecting rod; 17. balancing weight; 18. a right slewing bearing inner ring; 19. a right slewing bearing outer ring; 20. a segmented rack; 21. a gear set; 22. a second gear; 23. a gearbox; 24. a knife rest.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Example (b):
referring to fig. 1-6, the field repair machine tool for machining a generator main shaft after laser cladding comprises a left rotary support, a right rotary support, a driving transmission assembly, a driven transmission assembly and a tool rest 24.
Specifically, the left rotary support member and the right rotary support member are arranged oppositely and connected through a machine tool connecting rod 16; the driving transmission assembly and the driven transmission assembly are respectively arranged on the left rotary supporting piece and the right rotary supporting piece, the tool rest 24 is arranged between the left rotary supporting piece and the right rotary supporting piece, and the tool rest 24 is in transmission connection with the driven transmission assembly.
Specifically, the left slewing bearing comprises an annular left slewing bearing outer ring 7 and an annular left slewing bearing inner ring 8, and the right slewing bearing comprises an annular right slewing bearing inner ring 18 and an annular right slewing bearing outer ring 19; the left slewing bearing outer ring 7, the left slewing bearing inner ring 8, the right slewing bearing inner ring 18 and the right slewing bearing outer ring 19 are formed by splicing two half-ring structures, and the two half-ring structures are connected into a whole through a plurality of groups of bolts, connecting plates 9 and tensioning bolts 15.
Specifically, a group of rollers 14 are arranged between the left slewing bearing outer ring 7 and the left slewing bearing inner ring 8 in a crossed manner, and between the right slewing bearing inner ring 18 and the right slewing bearing outer ring 19 in a crossed manner, and the rollers 14 are separated by installing the positioning frame 13, so that the crossed rollers 14 have good hardness and rigidity, can bear large radial and axial load impact at the same time, can obtain high-precision rotary motion after being pre-pressed, is convenient to operate and easy to install, and greatly reduces the installation space. V-shaped raceways with 90 degrees are arranged between the left slewing bearing outer ring 7 and the left slewing bearing inner ring 8 and between the right slewing bearing inner ring 18 and the right slewing bearing outer ring 19, so that the inner and outer raceways are in line contact with the rollers 14, a stable track is kept during movement, and the rollers 14 are prevented from being extruded, deformed and failed during movement.
Wherein, the outer ring 7 of the left slewing bearing is provided with a tooth structure, and the inner ring 18 of the right slewing bearing is provided with a segmented rack 20.
Specifically, the driving transmission assembly comprises a motor 1, a speed reducer 3 and a first gear 5, the motor 1 is installed on a motor base 2, the output end of the motor 1 is connected with the input end of the speed reducer 3 through a coupler, the output end of the speed reducer 3 is connected with the first gear 5, and the first gear 5 is meshed with an outer ring 7 of the left slewing bearing; the bottom of the speed reducer 3 is fixed on a support frame 4, the support frame 4 is fixed on an inner ring 8 of the left slewing bearing, and a baffle 6 is arranged on the speed reducer 3.
Specifically, the driven transmission assembly comprises a gear set 21, a second gear 22 and a gearbox 23, a tool rest 24 is erected between the left slewing bearing outer ring 7 and the right slewing bearing outer ring 19, a machining tool is movably arranged on the tool rest 24, and the machining tool is connected with the output end of the gearbox 23 through a lead screw. The machining tool can adopt a cutter, a grinding wheel and the like to finish various modern machining schemes such as grinding, milling, planing, special machining and the like, so that the surface of the shaft body has higher precision and better repairing effect; the number of workpieces can be increased, the automation of the tool rest module can be increased, and multi-axis machining can be realized.
The tool rest 24 and two ends of two machine tool connecting rods 16 are respectively fixed on the left slewing bearing outer ring 7 and the right slewing bearing outer ring 19; the processing tool is movably arranged on the tool rest 24, a screw rod is arranged on the processing tool, one end of the screw rod is connected with an output shaft of a gearbox 23, an input shaft of the gearbox 23 is connected with a second gear 22, a gear set 21 is hinged on the outer ring 19 of the right slewing bearing, the gear set 21 is a group of large gears and small gears which are fixedly connected with each other, the second gear 22 is meshed with the small gear of the gear set 21, and the large gear of the gear set 21 is meshed with a segmented rack 20 fixed on the inner ring 18 of the right slewing bearing. Wherein, the gear set 21, the second gear 22 and the segmented rack 20 form a planetary gear train.
Specifically, the positioning and clamping structure comprises a positioning and clamping screw rod 10 and an ejector block 11, the upper end of the positioning and clamping screw rod 10 is inserted into the inner side wall of the left slewing bearing inner ring 8 or the right slewing bearing inner ring 18 in a matched mode, a conical structure is arranged at the head of the positioning and clamping screw rod 10, and a conical groove matched with the conical structure is formed in the inner side wall of the left slewing bearing inner ring 8 or the right slewing bearing inner ring 18.
The lower end of the positioning and clamping screw 10 is connected with the ejector block 11 through threads, the lower end of the ejector block 11 is tightly attached to the large shaft 12, the lower end face of the ejector block 11 is matched with the outer side face of the large shaft 12, the relative position between the inner ring and the ejector block 11 can be adjusted by rotating the positioning screw 10, and then the large shafts 12 of different sizes are clamped.
Specifically, the balance weight 17 is installed on the left slewing bearing outer ring 7 and the right slewing bearing outer ring 19 according to actual working conditions on site, and the balance weight 17 is fixed on the outer ring by utilizing bolts to penetrate through arc-shaped pin grooves of the balance weight 17 and screwed into threaded holes in the corresponding outer rings.
When the machine tool works, the positioning and clamping structure is adjusted, and the left slewing bearing inner ring 8 and the right slewing bearing inner ring 18 are fixed on the large shaft 12; then, the motor 1 drives the left slewing bearing outer ring 7 to rotate, under the drive of the machine tool connecting rod 16 and the tool rest 24, the right slewing bearing outer ring 19 rotates, and then drives the driven transmission assembly to rotate around the large shaft 12, a gearbox 23 in the driven transmission assembly obtains power through a planetary gear train, and finally the power is transmitted to a machining tool on the tool rest 24 through a lead screw, so that the machining tool does axial feeding motion while rotating along with the tool rest, and the effect of machining the large shaft 12 is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A on-spot restoration lathe that is used for generator main shaft to carry out machining behind laser cladding, its characterized in that: the left rotary supporting part and the right rotary supporting part are arranged oppositely, cross roller bearing structures are adopted, counterweights (17) are arranged, the driving transmission assembly and the driven transmission assembly are arranged on the left rotary supporting part and the right rotary supporting part respectively, the tool rest (24) is arranged between the left rotary supporting part and the right rotary supporting part, a machining tool is arranged on the tool rest (24) and is in transmission connection with the driven transmission assembly, and a group of positioning and clamping structures used for clamping a large shaft (12) are arranged on the inner sides of the left rotary supporting part and the right rotary supporting part.
2. The field repair machine tool for laser cladding post-machining of the generator large shaft is characterized in that the left rotary support comprises an annular left rotary support outer ring (7) and an annular left rotary support inner ring (8), a group of rollers (14) are arranged between the left rotary support outer ring (7) and the left rotary support inner ring (8), and the rollers (14) are separated by a positioning frame (13); the left slewing bearing outer ring (7) and the left slewing bearing inner ring (8) are of split structures and are connected by a connecting plate (9) and a tension bolt (15).
3. The field repair machine tool for laser cladding post-machining of the generator large shaft is characterized in that the right rotary support comprises an annular right rotary support inner ring (18) and an annular right rotary support outer ring (19), a group of rollers (14) are also arranged between the right rotary support inner ring (18) and the right rotary support outer ring (19), and the rollers (14) are separated by a positioning frame (13); the right rotary support inner ring (18) and the annular right rotary support outer ring (19) are of split structures and are connected by a connecting plate (9) and a tension bolt (15).
4. The field repair machine tool for laser cladding post-machining of the generator main shaft according to claim 3, characterized in that the left slewing bearing outer ring (7) is provided with a tooth structure, and the right slewing bearing inner ring (18) is provided with a segmented rack (20).
5. The field repair machine tool for laser cladding post-machining of the generator main shaft is characterized in that V-shaped raceways are arranged between the left slewing bearing outer ring (7) and the left slewing bearing inner ring (8) and between the right slewing bearing inner ring (18) and the right slewing bearing outer ring (19), and the rollers (14) are arranged in the raceways in a crossed manner.
6. The field repair machine tool for machining after laser cladding of the generator main shaft is characterized in that the driving transmission assembly comprises a motor (1), a speed reducer (3) and a first gear (5), the output end of the motor (1) is connected with the input end of the speed reducer (3) through a coupler in a motor base (2), the first gear (5) is arranged at the output end of the speed reducer (3), the first gear (5) is meshed with a left slewing bearing outer ring (7), the speed reducer (3) is fixedly arranged on a left slewing bearing inner ring (8) through a support frame (4), and a baffle (6) is arranged on the outer side of the speed reducer (3).
7. The field repair machine tool for machining after laser cladding of the generator main shaft is used as claimed in claim 6, wherein the driven transmission assembly comprises a gear set (21), a second gear (22) and a gearbox (23), the gearbox (23) is arranged on the right slewing bearing outer ring (19), an input shaft of the gearbox (23) is connected with the second gear (22), the gear set (21) is hinged on the right slewing bearing outer ring (19) to serve as a planetary gear, the gear set (21) is formed by fixedly connecting a large gear and a small gear, the large gear is meshed with the segmented rack (20), and the small gear is meshed with the second gear (22).
8. The field repair machine tool for machining after laser cladding of the generator main shaft according to claim 7 is characterized in that the tool rest (24) is arranged between the left slewing bearing outer ring (7) and the right slewing bearing outer ring (19), a machining tool is movably arranged on the tool rest (24), and the machining tool is connected with the output end of the gearbox (23) through a lead screw.
9. The field repair machine tool for machining after laser cladding of the generator large shaft is characterized in that the positioning and clamping structure comprises a positioning and clamping screw (10) and a top block (11), the upper end of the positioning and clamping screw (10) is in sharp top fit and insertion connection with a tapered groove in the inner side wall of the left rotary support inner ring (8) or the right rotary support inner ring (18), the lower end of the positioning and clamping screw (10) is in threaded connection with the top block (11), the lower end face of the top block (11) is tightly attached to the large shaft (12), and the lower end face of the top block (11) is of a V-shaped structure and can be matched with the outer side face of the large shaft (12).
10. The field repair machine tool for laser cladding post-machining of the generator main shaft according to claim 9 is characterized in that a group of machine tool connecting rods (16) are arranged between the left slewing bearing outer ring (7) and the right slewing bearing outer ring (19), and the balance weights (17) are arranged on the left slewing bearing outer ring (7) and the right slewing bearing outer ring (19).
CN202111420825.5A 2021-11-26 2021-11-26 On-site repair machine tool for machining generator large shaft after laser cladding Pending CN114211285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111420825.5A CN114211285A (en) 2021-11-26 2021-11-26 On-site repair machine tool for machining generator large shaft after laser cladding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111420825.5A CN114211285A (en) 2021-11-26 2021-11-26 On-site repair machine tool for machining generator large shaft after laser cladding

Publications (1)

Publication Number Publication Date
CN114211285A true CN114211285A (en) 2022-03-22

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ID=80698590

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111420825.5A Pending CN114211285A (en) 2021-11-26 2021-11-26 On-site repair machine tool for machining generator large shaft after laser cladding

Country Status (1)

Country Link
CN (1) CN114211285A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB612816A (en) * 1944-03-01 1948-11-18 Ettore Bugatti Improvements in crankshaft turning lathes
CN101362215A (en) * 2008-09-27 2009-02-11 天津赛瑞机器设备有限公司 Online combination vehicle-axle device
CN201471194U (en) * 2009-09-01 2010-05-19 齐齐哈尔轨道交通装备有限责任公司 Overturning machine
CN105171328A (en) * 2015-09-16 2015-12-23 江苏振光电力设备制造有限公司 Tool for unequal-diameter pipe fitting two-end linkage flange
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
CN108296787A (en) * 2018-03-26 2018-07-20 斯普瑞科技有限公司 Laser melting coating and numerical-control turn-milling composite processing machine tool
CN108747438A (en) * 2018-07-20 2018-11-06 科德数控股份有限公司 Linear drives rotary table
CN109932177A (en) * 2019-04-18 2019-06-25 吉林大学 A kind of electric spindle of boring mill universal turning load reliability test
CN210704695U (en) * 2019-09-29 2020-06-09 北京铁道工程机电技术研究所股份有限公司 Turnover equipment
CN213318144U (en) * 2020-09-09 2021-06-01 天津由鑫建筑材料制造有限公司 Pipe thread turning equipment

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB612816A (en) * 1944-03-01 1948-11-18 Ettore Bugatti Improvements in crankshaft turning lathes
CN101362215A (en) * 2008-09-27 2009-02-11 天津赛瑞机器设备有限公司 Online combination vehicle-axle device
CN201471194U (en) * 2009-09-01 2010-05-19 齐齐哈尔轨道交通装备有限责任公司 Overturning machine
CN105171328A (en) * 2015-09-16 2015-12-23 江苏振光电力设备制造有限公司 Tool for unequal-diameter pipe fitting two-end linkage flange
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
CN108296787A (en) * 2018-03-26 2018-07-20 斯普瑞科技有限公司 Laser melting coating and numerical-control turn-milling composite processing machine tool
CN108747438A (en) * 2018-07-20 2018-11-06 科德数控股份有限公司 Linear drives rotary table
CN109932177A (en) * 2019-04-18 2019-06-25 吉林大学 A kind of electric spindle of boring mill universal turning load reliability test
CN210704695U (en) * 2019-09-29 2020-06-09 北京铁道工程机电技术研究所股份有限公司 Turnover equipment
CN213318144U (en) * 2020-09-09 2021-06-01 天津由鑫建筑材料制造有限公司 Pipe thread turning equipment

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