CN113172244A - Machining system for steam turbine rotor - Google Patents
Machining system for steam turbine rotor Download PDFInfo
- Publication number
- CN113172244A CN113172244A CN202110476305.XA CN202110476305A CN113172244A CN 113172244 A CN113172244 A CN 113172244A CN 202110476305 A CN202110476305 A CN 202110476305A CN 113172244 A CN113172244 A CN 113172244A
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- main shaft
- stud
- frame
- groove
- steam turbine
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- 238000003754 machining Methods 0.000 title claims abstract description 23
- 239000003638 chemical reducing agent Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000011295 pitch Substances 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010795 Steam Flooding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/08—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning axles, bars, rods, tubes, rolls, i.e. shaft-turning lathes, roll lathes; Centreless turning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention discloses a machining system for a steam turbine rotor, which comprises a base, wherein a mounting plate is fixedly mounted at the top of one end of the base, a clamping disc is mounted on the mounting plate, a mounting groove is formed in the middle of the base, one end, close to the mounting plate, of the mounting groove is slidably clamped with a U-shaped frame, the other end of the mounting groove is slidably clamped with a return frame, a positioning and supporting mechanism is mounted between the return frame and the U-shaped frame, and a tool rest is mounted at the top of one side of the base. The steam turbine main shaft is put on U type frame after hoisting equipment lifts by crane, thereby it cup joints in main shaft one end to then return the shape frame along the mounting groove slip, location supporting mechanism carries out self-centering location to the main shaft makes the main shaft axis align with the tight dish of clamp, thereby it aligns to be convenient for press from both sides tight dish and carry out the centre gripping fixed, then add the tight dish of clamp and drive the main shaft rotation, install the lathe tool on the knife rest, thereby carry out the turning to the main shaft, and location supporting mechanism evenly supports the main shaft, guarantee the main shaft level, thereby improve main shaft machining precision.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to a machining system for a steam turbine rotor.
Background
The steam turbine, also called a steam turbine engine, is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, meanwhile, the steam turbine rotor is a combination body consisting of a main shaft, an impeller or a rotary drum, a moving blade, a coupling and the like, steam drives the rotor to rotate so as to apply work to the outside, the main shaft is required to be turned in the processing of the steam turbine rotor so as to ensure the precision of the main shaft, the conventional steam turbine rotor processing equipment directly clamps and fixes the main shaft by a disc chuck when turning the main shaft, but the length and the weight of the main shaft are large, the machining system for the steam turbine rotor is difficult to maintain the horizontal position during installation, difficult to clamp, easy to incline due to lack of support in the middle part during machining, and low in coaxiality after machining, so that the machining system for the steam turbine rotor is provided for solving the problems.
Disclosure of Invention
The present invention is directed to a machining system for a steam turbine rotor that solves the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a machining system for steam turbine rotor, includes the base, the one end top fixed mounting panel of base, the tight dish of installation clamp on the mounting panel, open at the base middle part has the mounting groove, the mounting groove is close to the one end slip joint U type frame of mounting panel, the other end slip joint of mounting groove returns the shape frame, return and install location supporting mechanism between shape frame and U type frame, a side top installation knife rest of base.
An embodiment of preferred, press from both sides tight dish and include outer disk body, outer disk body rotates the connection mounting panel, rotate the joint carousel in the outer disk body, the one end terminal surface that the mounting panel was kept away from to outer disk body is opened there are a plurality of T type grooves, the slip joint splint in the T type groove, the one end fixed mounting plane screw thread of carousel, splint inner wall fixed mounting pinion rack, pinion rack meshing plane screw thread, the other end terminal surface fixed mounting awl fluted disc of carousel, the circumference outer wall of outer disk body rotates the joint knob, knob fixed connection bevel gear, bevel gear meshing awl fluted disc.
An embodiment of preferred, splint and T type groove are along outer disk body circumferencial direction evenly distributed, splint and pinion rack constitute the T type structure in laminating T type groove, the one end terminal surface that bevel gear was kept away from to the knob is opened there is the cuboid recess, install the damping circle between knob outer wall and outer disk body.
In an embodiment, the outer walls of the two sides of the U-shaped frame and the U-shaped frame are fixedly provided with locking plates, the tops of the bases on the two sides of the installation groove are provided with a plurality of threaded holes, and the locking plates are connected with the threaded holes through bolts.
Preferably, the positioning and supporting mechanism comprises a first guide groove and a second guide groove, wherein the inner walls of the two sides of the U-shaped frame are respectively provided with a first guide groove, the inner walls of the two sides of the U-shaped frame are respectively provided with a second guide groove, a first V-shaped block is slidably clamped between the inner walls of the top and the bottom of the first guide groove, a first stud is rotatably sleeved in the first guide groove, the two first V-shaped blocks are respectively sleeved at the two ends of the first stud through a threaded structure, a second V-shaped block is slidably clamped in the second guide groove, a main shaft is rotatably sleeved between the inner walls of the two ends of the mounting groove, one end of the main shaft penetrates through the base and is fixedly connected with the output shaft of the motor, the bottom of the inner cavity of the U-shaped frame is rotatably sleeved with the second stud, the top of the second stud is connected with the bottom of the second V-shaped block through a threaded structure, and both sides of the bottom of the U-shaped frame are rotatably sleeved with a cross shaft, and a bevel gear set matched with the bottom of the second stud and the main shaft is arranged between one end of the cross shaft and the bottom of the first stud and between the other end of the cross shaft and the main shaft.
In a preferred embodiment, the openings of the V-shaped grooves of the first V-shaped blocks are opposite, the two first V-shaped blocks are symmetrically distributed along the axis of the clamping disc, the second V-shaped block is flush with the first V-shaped block at the bottom of the clip frame, and the inner walls of the V-shaped grooves of the first V-shaped block and the second V-shaped block are rotatably provided with a plurality of rollers.
In an embodiment of the invention, the first stud is a double-ended stud, threads at two ends of the first stud are opposite in turning direction and have the same thread pitch, the thread pitches of the first stud and the second stud are the same, the transmission ratio of the bevel gear set is 1:1, the first V-shaped block and the second V-shaped block move synchronously and have the same moving distance, so that the second V-shaped block and the first V-shaped block at the bottom of the circular frame are always and simultaneously supported on the rotor shaft and keep the rotor shaft horizontal, and the two first V-shaped blocks are close to each other through reverse threads of the first stud, so that the rotor shaft is centered and clamped, the rotor shaft is ensured to coincide with the axis of the clamping disc, and the rotor shaft is conveniently clamped to rotate.
Preferably, the bevel gear group is fixedly connected with the spindle and fixedly sleeved with a shaft sleeve, the shaft sleeve rotates to penetrate through the circular frame and the U-shaped frame, the spindle is sleeved in an inner cavity of the shaft sleeve, a limiting groove is formed in the outer wall of the circumference of the spindle, a limiting block is fixedly installed on the inner wall of the shaft sleeve and slidably clamped with the limiting groove, so that when the circular frame and the U-shaped frame slide along the mounting groove to adjust the position, the bevel gear group slides along the spindle through the shaft sleeve, and when the spindle rotates, the shaft sleeve is driven to rotate through the limiting groove and the limiting block, and the first stud and the second stud can be driven to rotate all the time.
In an embodiment of the present invention, a sliding groove is formed in the top of one side of the base, the bottom of the tool holder is slidably clamped to the sliding groove, fixing plates are fixedly mounted on the tops of the two ends of the sliding groove, a screw rod is sleeved between the fixing plates in a rotating manner, the tool holder is sleeved with the screw rod through a threaded structure, a speed reducer is fixedly mounted on the top of one end of the base, an output shaft of the speed reducer penetrates through the mounting plate and is fixedly connected with a clamping disc, an input shaft of the speed reducer is fixedly connected with an output shaft of a motor, and a transmission belt is mounted between the output shaft of the speed reducer and one end of the screw rod.
Compared with the prior art, the invention has the beneficial effects that:
1. the main shaft synchronously drives the first stud and the second stud to rotate through the bevel gear set, the first stud enables the two first V-shaped blocks to synchronously approach, the second stud enables the second V-shaped block to move upwards, so that the main shaft is synchronously supported to move upwards, when the two first V-shaped blocks simultaneously approach the clamping main shaft, the main shaft realizes self-centering positioning, and at the moment, the axis of the main shaft is superposed with the axis of the outer disc body, so that the clamping disc is clamped and fixed conveniently;
2. the knob is driven to rotate through the wrench, the knob drives the bevel gear to rotate, the bevel gear drives the rotary table to rotate through the bevel gear disc, the rotary table drives the plane thread to rotate, the plane thread drives the toothed plate to slide along the sliding groove, so that the plurality of clamping plates are synchronously close to each other, the clamping plates and the T-shaped grooves are uniformly distributed in the circumferential direction of the outer disc body, after the clamping plates synchronously close to the clamping main shaft, the axis of the main shaft is superposed with the axis of the outer disc body, the coaxial rotation of the main shaft and the clamping disc is ensured, the main shaft is kept horizontal through the supporting force of the first V-shaped block and the second V-shaped block, the horizontal coaxial rotation of the main shaft is ensured, and the turning coaxiality is ensured;
3. when the speed reducer drives the clamping disc to slowly rotate, the screw rod is synchronously driven to rotate through the transmission belt, and the screw rod drives the tool rest to move along the sliding groove, so that the surface of the main shaft is comprehensively turned, and the machining efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of the chuck plate of the present invention;
FIG. 3 is a schematic structural view of a positioning and supporting mechanism according to the present invention;
FIG. 4 is an enlarged view of the structure at A in FIG. 3 according to the present invention;
FIG. 5 is a schematic view of a partial structure of the belt of the present invention.
In the figure: 1. a base; 2. mounting a plate; 3. clamping the disc; 31. an outer tray body; 32. a turntable; 33. a T-shaped groove; 34. a splint; 35. a planar thread; 36. a toothed plate; 37. a conical fluted disc; 38. a bevel gear; 39. a knob; 4. mounting grooves; 5. a shape-returning frame; 6. a U-shaped frame; 7. a positioning support mechanism; 71. a first guide groove; 72. a first V-shaped block; 73. a second guide groove; 74. a second V-shaped block; 75. a first stud; 76. a main shaft; 77. a horizontal axis; 78. a second stud; 79. a bevel gear set; 8. a tool holder; 9. a locking plate; 10. a speed reducer; 11. a motor; 12. a chute; 13. a fixing plate; 14. a lead screw; 15. a shaft sleeve; 16. a limiting groove; 17. a limiting block; 18. a transmission belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a machining system for steam turbine rotor, includes base 1, base 1's one end top fixed mounting panel 2, and the installation presss from both sides tight dish 3 on the mounting panel 2, and open at base 1 middle part has mounting groove 4, and mounting groove 4 is close to the one end slip joint U type frame 6 of mounting panel 2, and the other end slip joint of mounting groove 4 returns the shape frame 5, returns and installs location supporting mechanism 7 between shape frame 5 and U type frame 6, one side top installation knife rest 8 of base 1. The steam turbine main shaft is put on U type frame 6 after hoisting equipment lifts by crane, thereby it cup joints in main shaft one end to then go back the shape frame 5 along mounting groove 4 slip, location supporting mechanism 7 makes the main shaft axis align with pressing from both sides tight dish 3 from the centering location to the main shaft, thereby it carries out the centre gripping fixedly to be convenient for press from both sides tight dish 3 and align, then add that to press from both sides tight dish 3 and drive the main shaft rotation, install the lathe tool on the knife rest 8, thereby carry out the turning to the main shaft, and location supporting mechanism 7 evenly supports the main shaft, guarantee the main shaft level, thereby improve main shaft machining precision.
The clamping disc 3 comprises an outer disc body 31, the outer disc body 31 is rotatably connected with the mounting plate 2, a clamping rotary disc 32 is rotatably arranged in the outer disc body 31, a plurality of T-shaped grooves 33 are formed in the end face, far away from the mounting plate 2, of the outer disc body 31, a clamping plate 34 slides in the T-shaped grooves 33, a planar thread 35 is fixedly arranged at one end of the rotary disc 32, a toothed plate 36 is fixedly arranged on the inner wall of the clamping plate 34, the toothed plate 36 is meshed with the planar thread 35, a conical toothed disc 37 is fixedly arranged at the other end face of the rotary disc 32, a clamping knob 39 is rotated on the circumferential outer wall of the outer disc body 31, the knob 39 is fixedly connected with a bevel gear 38, the bevel gear 38 is meshed with the conical toothed disc 37, the knob 39 is rotated, the knob 39 drives the bevel gear 38 to rotate, the bevel gear 38 drives the rotary table 32 to rotate through the bevel gear disc 37, the rotary table 32 drives the planar thread 35 to rotate, and the planar thread 35 drives the toothed plate 36 to slide along the sliding groove 33, so that the plurality of clamping plates 34 are synchronously close to each other, and the spindle is rapidly clamped.
Further, splint 34 and T type groove 33 are along outer disk body 31 circumferencial direction evenly distributed, then splint 34 is synchronous to be close to after pressing from both sides tight main shaft, the main shaft axis coincides with outer disk body 31 axis, thereby guarantee main shaft and the coaxial rotation of tight dish 3 of clamp, guarantee the turning axiality, splint 34 constitutes the T type structure in laminating T type groove 33 with pinion rack 36, avoid splint 34 and outer disk body 31 to break away from, the one end terminal surface that bevel gear 38 was kept away from to knob 39 opens has the cuboid recess, be convenient for insert through the spanner and rotate in the knob 39, install the damping circle between knob 39 outer wall and outer disk body 31, improve the frictional force between knob 39 and outer disk body 31, avoid it to rotate by oneself.
Further, the outer walls of the two sides of the clip frame 5 and the U-shaped frame 6 are fixedly provided with the locking plates 9, the tops of the bases on the two sides of the mounting groove 4 are provided with a plurality of threaded holes, the locking plates 9 are connected with the threaded holes through bolts, and the clip frame 5 and the U-shaped frame 6 are fixed through the locking plates 9 and the bolts after the positions of the clip frame and the U-shaped frame are adjusted along the mounting groove 4 in a sliding mode, so that the use is convenient.
The positioning support mechanism 7 comprises a first guide groove 71 and a second guide groove 73, the inner walls of two sides of the U-shaped frame 5 are respectively provided with a first guide groove 71, the inner walls of two sides of the U-shaped frame 6 are respectively provided with a second guide groove 73, a first V-shaped block 72 is slidably clamped between the inner walls of the top and the bottom of the first guide groove 71, a first stud 75 is rotatably sleeved in the first guide groove 71, the two first V-shaped blocks 72 are respectively sleeved at two ends of the first stud 75 through a threaded structure, a second V-shaped block 74 is slidably clamped in the second guide groove 73, a main shaft 76 is rotatably sleeved between the inner walls of two ends of the mounting groove 4, one end of the main shaft 76 penetrates through the base 1 and is fixedly connected with an output shaft of the motor, the bottom of an inner cavity of the U-shaped frame 6 is rotatably sleeved with the second stud 78, the top of the second stud 78 is connected with the bottom of the second V-shaped block 74 through a threaded structure, two sides of the bottom of the U-shaped frame 5 are rotatably sleeved with two sides of the bottom of the cross shaft 77, one end of the cross shaft 77 is connected with the bottom of the first stud 75, The other end of the transverse shaft 77 and the main shaft 76, and the bevel gear sets 79 matched with each other are installed between the bottom of the second stud 78 and the main shaft 76, so that after the main shaft is hoisted and placed on the second V-shaped block 74, the clip frame 5 slides, so that one end of the main shaft is located between the two first V-shaped blocks 72, the first V-shaped blocks 72 and the second V-shaped blocks 74 at the bottom of the clip frame 5 simultaneously support the main shaft, so that the main shaft is kept horizontal, then the main shaft 76 synchronously drives the first studs 75 and the second studs 78 to rotate through the bevel gear sets 79, the first studs 75 enable the two first V-shaped blocks 72 to synchronously approach each other, and the second studs 78 enable the second V-shaped blocks 74 to move upwards, so that the main shaft is synchronously supported to move upwards, and when the two first V-shaped blocks 72 simultaneously approach and clamp the main shaft, the main shaft realizes self-centering positioning, so that the clamping disc 3 can be clamped.
Further, the V-shaped groove openings of the first V-shaped blocks 72 are right opposite, the two first V-shaped blocks 72 are symmetrically distributed along the axis of the clamping disc 3, when the first V-shaped blocks 72 are attached to the main shaft at the same time, the axis of the main shaft coincides with the axis of the clamping disc 3, the second V-shaped blocks 74 are flush with the first V-shaped blocks 72 at the bottom of the clip frame 5, the synchronous supporting main shaft is convenient to move, the inner walls of the V-shaped grooves of the first V-shaped blocks 72 and the second V-shaped blocks 74 are provided with a plurality of rollers in a rotating mode, and the clamping disc 3 is convenient to drive the main shaft to rotate and turn.
Further, the first stud 75 is a double-ended stud, the thread directions of the two ends of the first stud 75 are opposite, the thread pitches are the same, the thread pitches of the first stud 75 and the second stud 78 are the same, the transmission ratio of the bevel gear set 79 is 1:1, the first V-shaped block 72 and the second V-shaped block 74 move synchronously, the moving distances are the same, the second V-shaped block 74 and the first V-shaped block 72 at the bottom of the square-shaped frame 5 are always supported on the rotor shaft at the same time, the rotor shaft is kept horizontal, the two first V-shaped blocks 72 are close to each other through the reverse threads of the first stud 75, the rotor shaft is clamped in a centering manner, the axis of the rotor shaft is enabled to be coincident with the axis of the clamping disc 3, and the rotor shaft is convenient to clamp to rotate.
Further, bevel gear group 79 connects main shaft 76 department fixed sleeve joint axle sleeve 15, axle sleeve 15 rotates and runs through back shape frame 5 and U type frame 6, axle sleeve 15 inner chamber cup joints main shaft 76, the circumference outer wall of main shaft 76 is opened there is spacing groove 16, the inner wall fixed mounting stopper 17 of axle sleeve 15, stopper 17 slip joint spacing groove 16, thereby make back shape frame 5 and U type frame 6 along the mounting groove 4 when sliding the adjusting position, bevel gear group 79 passes through axle sleeve 15 and slides along main shaft 76, and when main shaft 76 rotates, drive axle sleeve 15 through spacing groove 16 and stopper 17 and rotate, thereby can drive first double-screw bolt 75 and second double-screw bolt 78 all the time and rotate.
Further, open base 1's one side top has spout 12, tool rest 8's bottom slip joint spout 12, the equal fixed mounting fixed plate 13 in both ends top of spout 12, it cup joints lead screw 14 to rotate between fixed plate 13, tool rest 8 cup joints lead screw 14 through the helicitic texture, base 1's one end top fixed mounting speed reducer 10, speed reducer 10's output shaft runs through mounting panel 2 and fixed connection presss from both sides tight dish 3, the output shaft of speed reducer 10's input shaft fixed connection motor 11, installation drive belt 18 between speed reducer 10's output shaft and lead screw 14's one end, then motor 11 drives speed reducer 10, speed reducer 10 drives and presss from both sides and drives lead screw 14 through drive belt 18 synchronous drive lead screw 14 when pressing from both sides tight dish 3 slow rotation and rotates, lead screw 14 drives tool rest 8 and removes along spout 12, thereby carry out comprehensive turning to the main shaft surface.
The working principle is as follows: when the invention is used, a steam turbine main shaft is lifted by a lifting device and then placed on the second V-shaped block 74, the return frame 5 slides, so that one end of the main shaft is positioned between the two first V-shaped blocks 72, then the main shaft is fixed by the locking plate 9 and the bolt, the first V-shaped blocks 72 and the second V-shaped blocks 74 at the bottom of the return frame 5 simultaneously support the main shaft, so that the main shaft is kept horizontal, the motor drives the main shaft 76 to rotate, the main shaft 76 synchronously drives the first stud 75 and the second stud 78 to rotate through the bevel gear set 79, the first stud 75 enables the two first V-shaped blocks 72 to synchronously approach, the second stud 78 enables the second V-shaped block 74 to move upwards, so that the main shaft is synchronously supported to move upwards, when the two first V-shaped blocks 72 simultaneously approach to clamp the main shaft, the main shaft axis and the outer disc body 31 axis are coincided, then the knob 39 is driven to rotate through the wrench, the knob 39 drives the bevel gear 38 to rotate, bevel gear 38 drives turntable 32 to rotate through bevel gear disc 37, turntable 32 drives plane thread 35 to rotate, plane thread 35 drives toothed plate 36 to slide along chute 33, thereby enabling a plurality of clamping plates 34 to synchronously approach, clamping plates 34 and T-shaped groove 33 are uniformly distributed along the circumferential direction of outer disc body 31, then clamping plates 34 synchronously approach to clamp the spindle, the axis of the spindle coincides with the axis of outer disc body 31, thereby ensuring that the spindle and clamping disc 3 coaxially rotate, motor 11 drives speed reducer 10, speed reducer 10 drives outer disc body 31 to rotate, the spindle keeps horizontal by the supporting force of first V-shaped block 72 and second V-shaped block 74, thereby ensuring that the spindle keeps horizontal coaxial rotation, and ensuring the turning coaxiality, lead screw 14 is synchronously driven to rotate by driving belt 18 when speed reducer 10 drives clamping disc 3 to slowly rotate, lead screw 14 drives tool rest 8 to move along chute 12, thereby comprehensively turning the surface of the spindle, the processing efficiency is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A machining system for a steam turbine rotor, comprising a base (1), characterized in that: the one end top fixed mounting panel (2) of base (1), installation clamp plate (3) on mounting panel (2), open base (1) middle part has mounting groove (4), mounting groove (4) are close to one end slip joint U type frame (6) of mounting panel (2), the other end slip joint of mounting groove (4) returns shape frame (5), return and install location supporting mechanism (7) between shape frame (5) and U type frame (6), one side top installation knife rest (8) of base (1).
2. A machining system for a steam turbine rotor according to claim 1, characterized in that: press from both sides tight dish (3) including outer disk body (31), outer disk body (31) rotate connection mounting panel (2), outer disk body (31) internal rotation joint carousel (32), the one end terminal surface of keeping away from mounting panel (2) of outer disk body (31) opens there are a plurality of T type grooves (33), interior slip joint splint (34) in T type groove (33), one end fixed mounting plane screw thread (35) of carousel (32), splint (34) inner wall fixed mounting pinion rack (36), pinion rack (36) meshing plane screw thread (35), the other end terminal surface fixed mounting awl fluted disc (37) of carousel (32), the circumference outer wall of outer disk body (31) rotates joint knob (39), knob (39) fixed connection bevel gear (38), bevel gear (38) meshing awl fluted disc (37).
3. A machining system for a steam turbine rotor according to claim 2, wherein: splint (34) and T type groove (33) are along outer dish body (31) circumferencial direction evenly distributed, splint (34) and pinion rack (36) constitute the T type structure of laminating T type groove (33), the one end terminal surface that bevel gear (38) were kept away from in knob (39) has the cuboid recess, install the damping circle between knob (39) outer wall and outer dish body (31).
4. A machining system for a steam turbine rotor according to claim 1, characterized in that: the locking plate is characterized in that locking plates (9) are fixedly mounted on the outer walls of the two sides of the U-shaped frame (5) and the outer wall of the two sides of the U-shaped frame (6), a plurality of threaded holes are formed in the tops of the bases (1) on the two sides of the mounting groove (4), and the locking plates (9) are connected with the threaded holes through bolts.
5. A machining system for a steam turbine rotor according to claim 1, characterized in that: the positioning and supporting mechanism (7) comprises a first guide groove (71) and a second guide groove (73), the inner walls of two sides of the U-shaped frame (5) are provided with the first guide groove (71), the inner walls of two sides of the U-shaped frame (6) are provided with the second guide groove (73), the top and the inner wall of the bottom of the first guide groove (71) are respectively connected with a first V-shaped block (72) in a sliding manner, a first stud (75) is sleeved in the first guide groove (71) in a rotating manner, the two first V-shaped blocks (72) are respectively sleeved at two ends of a first stud (75) through a threaded structure, a second V-shaped block (74) is slidably connected in the second guide groove (73), the inner walls of two ends of the mounting groove (4) are rotatably sleeved with a main shaft (76), one end of the main shaft (76) penetrates through the output shaft of the base (1) and is fixedly connected with the motor, the bottom of the inner cavity of the U-shaped frame (6) is rotatably sleeved with a second stud (78), the top of the second stud (78) is connected with the bottom of the second V-shaped block (74) through a threaded structure, two sides of the bottom of the clip frame (5) are rotatably sleeved with a transverse shaft (77), one end of the transverse shaft (77) is connected with the bottom of the first stud (75), the other end of the transverse shaft (77) is connected with a main shaft (76), and a bevel gear set (79) matched with the bottom of the second stud (78) and the main shaft (76) is mounted between the bottom of the second stud (78).
6. The machining system for a steam turbine rotor of claim 5, wherein: the V type groove opening of first V type piece (72) is just right, and two first V type pieces (72) along the axis symmetric distribution who presss from both sides tight dish (3), second V type piece (74) and first V type piece (72) parallel and level of returning shape frame (5) bottom, the V type inslot wall of first V type piece (72) and second V type piece (74) all rotates a plurality of rollers of installation.
7. The machining system for a steam turbine rotor of claim 5, wherein: the first stud (75) is a stud, the thread directions of two ends of the first stud (75) are opposite, the thread pitches are the same, the thread pitches of the first stud (75) and the second stud (78) are the same, the transmission ratio of the bevel gear set (79) is 1:1, the first V-shaped block (72) and the second V-shaped block (74) move synchronously, the moving distances are the same, the second V-shaped block (74) and the first V-shaped block (72) at the bottom of the square-shaped frame (5) are always supported on the rotor shaft at the same time, the rotor shaft is kept horizontal, the two first V-shaped blocks (72) are close to each other through the reverse threads of the first stud (75), the rotor shaft is centered and clamped, the axis of the rotor shaft is enabled to coincide with the axis of the clamping disc (3), and the rotor shaft is convenient to clamp to rotate.
8. The machining system for a steam turbine rotor of claim 5, wherein: spindle (76) department is connected in bevel gear group (79) fixed cup joints axle sleeve (15), axle sleeve (15) are rotated and are run through back shape frame (5) and U type frame (6), axle sleeve (15) inner chamber cup joints spindle (76), the circumference outer wall of spindle (76) is opened there is spacing groove (16), the inner wall fixed mounting stopper (17) of axle sleeve (15), stopper (17) slip joint spacing groove (16) to when making back shape frame (5) and U type frame (6) along mounting groove (4) slip adjusting position, bevel gear group (79) slide along spindle (76) through axle sleeve (15), and when spindle (76) rotate, drive axle sleeve (15) through spacing groove (16) and stopper (17) and rotate, thereby can drive first double-screw bolt (75) and second double-screw bolt (78) and rotate all the time.
9. A machining system for a steam turbine rotor according to claim 1, characterized in that: open at one side top of base (1) has spout (12), the bottom slip joint spout (12) of knife rest (8), the equal fixed mounting fixed plate in both ends top (13) of spout (12), fixed plate (13) are rotated and are cup jointed lead screw (14), knife rest (8) cup joint lead screw (14) through helicitic texture, the one end top fixed mounting speed reducer (10) of base (1), the output shaft of speed reducer (10) runs through mounting panel (2) and fixed connection clamp plate (3), the output shaft of input shaft fixed connection motor (11) of speed reducer (10), install drive belt (18) between the output shaft of speed reducer (10) and the one end of lead screw (14).
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| CN202110476305.XA CN113172244A (en) | 2021-04-29 | 2021-04-29 | Machining system for steam turbine rotor |
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| CN202110476305.XA CN113172244A (en) | 2021-04-29 | 2021-04-29 | Machining system for steam turbine rotor |
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| CN114226767A (en) * | 2022-02-28 | 2022-03-25 | 广东中深塑科技有限公司 | HDPE solid-wall pipe double-tool-rest alternate feed cutting numerical control lathe |
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| CN114472967A (en) * | 2022-03-16 | 2022-05-13 | 杭州汽轮铸锻有限公司 | A equipment that is used for pressure measurement lug drilling of steam line |
| CN115351619A (en) * | 2022-08-16 | 2022-11-18 | 长沙洛尔赛精密科技有限公司 | Machining device and machining method based on cylindrical cabin-shaped precision parts |
| CN116638154A (en) * | 2023-07-21 | 2023-08-25 | 四川省第一建筑工程有限公司 | Grooving device for building construction pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714782A (en) * | 2021-09-13 | 2021-11-30 | 东莞市宝科精密机械有限公司 | Main shaft dismounting device and using method thereof |
| CN114406732A (en) * | 2021-12-22 | 2022-04-29 | 王彬毅 | Local heating cutting device for welding |
| CN114226767A (en) * | 2022-02-28 | 2022-03-25 | 广东中深塑科技有限公司 | HDPE solid-wall pipe double-tool-rest alternate feed cutting numerical control lathe |
| CN114472967A (en) * | 2022-03-16 | 2022-05-13 | 杭州汽轮铸锻有限公司 | A equipment that is used for pressure measurement lug drilling of steam line |
| CN114472967B (en) * | 2022-03-16 | 2023-11-17 | 杭州汽轮铸锻股份有限公司 | Equipment for drilling pressure measuring lug of steam pipeline |
| CN115351619A (en) * | 2022-08-16 | 2022-11-18 | 长沙洛尔赛精密科技有限公司 | Machining device and machining method based on cylindrical cabin-shaped precision parts |
| CN115351619B (en) * | 2022-08-16 | 2023-11-24 | 长沙洛尔赛精密科技有限公司 | Machining device and machining method based on cylindrical cabin-shaped precise parts |
| CN116638154A (en) * | 2023-07-21 | 2023-08-25 | 四川省第一建筑工程有限公司 | Grooving device for building construction pipeline |
| CN116638154B (en) * | 2023-07-21 | 2023-09-26 | 四川省第一建筑工程有限公司 | Grooving device for building construction pipeline |
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Application publication date: 20210727 |