CN110238645B - Turbine rotor spindle assembling device and method - Google Patents
Turbine rotor spindle assembling device and method Download PDFInfo
- Publication number
- CN110238645B CN110238645B CN201910467655.2A CN201910467655A CN110238645B CN 110238645 B CN110238645 B CN 110238645B CN 201910467655 A CN201910467655 A CN 201910467655A CN 110238645 B CN110238645 B CN 110238645B
- Authority
- CN
- China
- Prior art keywords
- disc
- shaft
- base
- turbine rotor
- plate
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a device and a method for assembling a main shaft of a turbine rotor, and belongs to the technical field of turbine compressors. The turbine rotor spindle assembling apparatus includes: the top of the base is provided with a first through hole, the extending end of the first shaft disc passes through the first through hole and is arranged in the base, and the connecting end of the first shaft disc is arranged on the base; the screw rods are slidably arranged at the top of the base along the horizontal direction, and the press covers are detachably connected with the screw rods along the vertical direction; the edge width of the gland is consistent with that of the corresponding wheel disc, and the wheel disc is arranged between the corresponding gland and the base; the press plate is detachably connected with a plurality of screw rods along the vertical direction, and the extending end of the second shaft plate penetrates through the press plate. The device and the method for assembling the turbine rotor spindle avoid the deformation of the spindle in the assembling process and ensure the coaxiality of all sections of the spindle.
Description
Technical Field
The invention relates to the technical field of a turbine compressor, in particular to a device and a method for assembling a main shaft of a turbine rotor.
Background
The turbo compressor rotor produced by the sinking and bulging group is an axial flow rotor, the rotor has a special structure, and the main shaft of the rotor is formed by combining a plurality of sections of wheel discs. Each section of thin-wall wheel disc of the main shaft is positioned through a spigot, connected together in an interference manner and fixed through a pin.
The main shaft consists of a front shaft disc, a rear shaft disc and nine sections of hollow wheel discs, the sections are positioned through openings, and fixing pins are radially installed and fixed. However, each section of the wheel disc of the main shaft is a thin-wall part, so that deformation is easy to occur in the assembling process, and the coaxiality of each section after the main shaft is formed is poor.
Disclosure of Invention
The invention provides a device and a method for assembling a main shaft of a turbine rotor, which solve or partially solve the technical problems that the main shaft in the prior art is easy to deform in the assembling process and the coaxiality of the sections behind the formed main shaft is poor.
In order to solve the above technical problem, the present invention provides a turbine rotor spindle assembling apparatus, the spindle including: first reel, second reel and a plurality of rim plate, turbine rotor main shaft assembly quality includes: the device comprises a base, a pressure plate, a plurality of screws and a plurality of glands; the top of the base is provided with a first through hole, the extending end of the first shaft disc penetrates through the first through hole to be arranged in the base, and the connecting end of the first shaft disc is arranged on the base; the plurality of screw rods are slidably arranged at the top of the base along the horizontal direction, and the plurality of pressing covers are detachably connected with the plurality of screw rods along the vertical direction; the wheel discs are pressed down through the corresponding glands when the wheel discs are assembled, and the corresponding glands are removed after the wheel discs are pressed down; the pressing disc is detachably connected with the plurality of screw rods in the vertical direction, the extending end of the second shaft disc penetrates through the pressing disc, and the connecting end of the second shaft disc is connected with the wheel disc which is arranged in the wheel disc and is far away from the first shaft disc.
Further, the base includes: the device comprises a top plate, a bottom plate, a positioning plate and a plurality of supporting plates; the top plate is fixedly connected with the bottom plate through a plurality of supporting plates; the locating plate is detachably arranged on the end face, deviating from the bottom plate, of the top plate.
Furthermore, a second through hole is formed in the positioning plate, and the second through hole is coaxial with the first through hole; the end face, deviating from the top plate, of the positioning plate is provided with a groove, and the connecting end of the first shaft disc is arranged in the groove.
Further, the base further comprises: a plurality of hold-down mechanisms; the pressing mechanisms are uniformly arranged on the bottom plate at intervals around the axis of the first shaft disc; the hold-down mechanism includes: the pressing plate, the first bolt and the second bolt; the first end of the first bolt is arranged on the bottom plate, and the second end of the first bolt is rotatably connected with the pressure plate; the second bolt penetrates through the pressing plate and is detachably connected with the bottom plate; the end of the pressure plate far away from the first bolt can be in contact with the extending end of the first shaft disc.
Furthermore, a plurality of the screws are evenly arranged on the base at equal intervals.
Based on the same inventive concept, the invention also provides a turbine rotor spindle assembling method, which comprises the following steps: supporting a first reel by a base; embedding a first-stage wheel disc in the plurality of wheel discs in a hot-mounting mode into the connecting end of the first shaft disc, compressing the first-stage wheel disc through a gland corresponding to the first-stage wheel disc, and removing the gland corresponding to the first-stage wheel disc from the screw rod after the first-stage wheel disc and the connecting end of the first shaft disc are compressed; other wheel discs in the plurality of wheel discs are embedded into the adjacent wheel discs in the installation mode of the first-stage wheel disc; embedding the connecting end of a second shaft disc into the last stage of the plurality of wheel discs in a hot-mounting mode, and pressing the connecting end of the second shaft disc tightly through a pressing disc; and finishing the assembly of the main shaft.
Further, the step of compressing the first-stage wheel disc through a gland corresponding to the first-stage wheel disc comprises the following steps: penetrating a gland corresponding to the first-stage wheel disc through the screw and pressing the gland above the first-stage wheel disc; and operating a nut on the screw rod, and pressing down a gland corresponding to the first-stage wheel disc by the nut to enable the gland corresponding to the first-stage wheel disc to apply uniform force to the circumference of the first-stage wheel disc until the first-stage wheel disc is completely embedded into the connecting end of the first shaft disc.
Further, the method for assembling the turbine rotor spindle further comprises the following steps: after the main shaft is assembled, processing pin holes in the outer wall of the main shaft, and installing fixing pins in the pin holes; and when the fixing pin is installed, the pressure plate, the base and the plurality of screws are detached.
Further, the step of processing a pin hole on the outer wall of the main shaft and installing a fixing pin in the pin hole comprises the following steps: processing pin holes in the outer wall of the main shaft which is not covered by the plurality of screws, and installing the fixing pins in the pin holes; removing a part of the screw rods, processing pin holes on a part of the outer wall leaked from the main shaft, and installing the fixing pins in the pin holes; installing a part of the disassembled screw on the pressure plate and the base, and recovering the moment; and removing the other part of the plurality of screw rods, processing pin holes on the other part of the outer wall leaked from the main shaft, and installing the fixing pins in the pin holes.
Further, the fixing pin is installed in the pin hole after being frozen.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
Because the first axle disc is supported by the base, the first axle disc in the plurality of axle discs is embedded into the connecting end of the first axle disc in a hot-fitting mode, the first axle disc is compressed by the gland corresponding to the first axle disc, the gland corresponding to the first axle disc is removed from the screw rod after the first axle disc is compressed with the connecting end of the first axle disc, other axle discs in the plurality of axle discs are all embedded into the adjacent axle discs in the mounting mode of the first axle disc, the connecting end of the second axle disc is embedded into the last axle disc in the plurality of axle discs in a hot-fitting mode, the connecting end of the second axle disc is compressed by the pressure disc, and the main axle is assembled, the even force can be applied to the circumference of the axle discs by the gland, the inclination of the axle discs is avoided, the axle discs are continuously pressed down, the gap caused by the axial cold shrinkage of the axle discs is eliminated, ensuring the coaxiality of all sections of the main shaft.
Drawings
FIG. 1 is a schematic structural view of a turbine rotor spindle assembly provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a spindle according to an embodiment of the present invention;
Fig. 3 is a schematic structural view of a disk of the spindle of fig. 2.
Detailed Description
Referring to fig. 1 to 3, an embodiment of the present invention provides a turbine rotor spindle assembly apparatus, where a spindle includes: first reel 1, second reel 2 and a plurality of rim plate 3, turbine rotor main shaft assembly quality includes: base 4, pressure disk 5, a plurality of screw rod 6 and a plurality of gland.
First through-hole has been seted up at the top of base 4, and the end that stretches out of first reel 1 passes first through-hole setting in base 4, and the link setting of first reel 1 is on base 4.
The plurality of screw rods 6 are slidably arranged at the top of the base 4 along the horizontal direction, and the plurality of pressing covers are detachably connected with the plurality of screw rods 6 along the vertical direction.
The plurality of glands correspond to the plurality of wheel discs 3 one to one, wherein the number of the plurality of glands is consistent with that of the plurality of wheel discs 3. The width of the edge of the gland is consistent with that of the corresponding wheel disc 3. When the wheel disc is assembled, the wheel disc is pressed down through the corresponding gland, and after the wheel disc is pressed down, the corresponding gland is detached.
The pressure plate 5 is detachably connected with the plurality of screw rods 6 along the vertical direction, the extending end of the second shaft disc 2 penetrates through the pressure plate 5, and the connecting end of the second shaft disc 2 is connected with the wheel disc which is arranged in the wheel disc 3 and is far away from the first shaft disc 1.
In the embodiment of the application, the first reel 1 is supported by the base 4, the first-stage wheel disc 3-1 in the plurality of wheel discs 3 is embedded into the connecting end of the first reel 1 in a hot-mounting mode, the first-stage wheel disc 3-1 is pressed by the gland corresponding to the first-stage wheel disc 3-1, after the first-stage wheel disc 3-1 is pressed against the connecting end of the first reel 1, the gland corresponding to the first-stage wheel disc is removed from the screw rod 6, other wheel discs in the plurality of wheel discs 3 are all embedded into the adjacent wheel discs in the mounting mode of the first-stage wheel disc, the connecting end of the second reel 2 is embedded into the last wheel disc in the plurality of wheel discs 3 in a hot-mounting mode, and the connecting end of the second reel 2 is pressed by the pressure disc 5 to complete the assembly of the spindle, so that the wheel discs can be prevented from inclining by applying uniform force to, the wheel disc is pressed down continuously, gaps caused by axial cold shrinkage of the wheel disc are eliminated, deformation of the main shaft in the assembling process is avoided, and coaxiality of all sections of the main shaft is guaranteed.
Specifically, the base 4 includes: a top plate 4-1, a bottom plate 4-2, a positioning plate 4-3 and a plurality of supporting plates 4-4.
The top plate 4-1 is fixedly connected with the bottom plate 4-2 through a plurality of supporting plates 4-4.
The positioning plate 4-3 is detachably arranged on the end face of the top plate 4-1 departing from the bottom plate 4-2. Specifically, in the present embodiment, the positioning plate 4-3 is detachably disposed on the end surface of the top plate 4-1 away from the bottom plate 4-2 by bolts.
A second through hole is formed in the positioning plate 4-3 and is coaxial with the first through hole; the end face, departing from the top plate 4-1, of the positioning plate 4-3 is provided with a groove, the connecting end of the first shaft disc 1 is arranged in the groove, the size of the groove is consistent with that of the connecting end of the first shaft disc 1, and the first shaft disc is positioned through the groove.
Meanwhile, a plurality of guide rails are arranged on the positioning plate 4-3 and correspond to the plurality of screw rods one by one, and the screw rods 6 are slidably arranged in the corresponding guide rails through sliding blocks.
A plurality of screw rods 6 are evenly arranged on the base 4 at equal intervals, so that the force applied by the nuts on the screw rods 6 to the gland and the pressure plate is balanced. Among them, the number of screws 6 is preferably 6.
The base 4 further includes: a plurality of hold-down mechanisms 4-5.
A plurality of pressing mechanisms 4-5 are arranged on the bottom plate 4-2 at intervals around the axis of the first shaft disc 1, and the number of the pressing mechanisms is preferably 3-4.
The pressing mechanism 4-5 includes: a pressure plate 4-51, a first bolt 4-52 and a second bolt 4-53.
The first end of the first bolt 4-52 is fixedly arranged on the bottom plate 4-2, and the second end of the first bolt 4-52 is rotatably connected with the pressure plate 4-51.
The second bolt 4-53 passes through the pressing plate 4-51 to be detachably connected with the bottom plate 4-2.
The end of the pressure plate 4-51 remote from said first bolt 4-52 may be in contact with the protruding end of the first shaft disc 1.
When the extending end of the first shaft disc 1 enters the base 4, the pressure plate 4-51 rotates around the first bolt 4-52 to reach the extending end of the first shaft disc 1, the second bolt 4-53 penetrates through the pressure plate 4-51 and is screwed into the bottom plate 4-2 to fix the pressure plate 4-51, and the pressure plate 4-51 fixes the first shaft disc 1 to avoid shaking.
Wherein, the gland and the pressure plate 5 are both annular.
Based on the same inventive concept, the invention also provides a turbine rotor spindle assembling method, which comprises the following steps:
And 2, embedding a first-stage wheel disc 3-1 in the plurality of wheel discs 3 into the connecting end of the first shaft disc 1 in a hot-fitting mode, pressing the first-stage wheel disc through a gland corresponding to the first-stage wheel disc 3-1, and removing the gland corresponding to the first-stage wheel disc 3-1 from the screw rod 6 after the first-stage wheel disc 3-1 and the connecting end of the first shaft disc 1 are pressed.
And 3, embedding other wheel discs in the plurality of wheel discs 3 into the adjacent wheel discs in a first-stage wheel disc installation mode.
And 4, embedding the connecting end of the second shaft disc 2 into the last stage of the plurality of the wheel discs in a hot-mounting mode, and pressing the connecting end of the second shaft disc 2 through a pressing disc 5.
And 5, finishing the assembly of the main shaft.
The connecting end of the first shaft disc 1 is arranged in a groove of a positioning plate 4-3 of the base 4, and the extending end of the first shaft disc 1 sequentially penetrates through the second through hole and the second through hole to enter between the top plate 4-1 and the bottom plate 4-2.
Compressing the first stage disk through a gland corresponding to the first stage disk includes the steps of:
And 21, penetrating the gland corresponding to the first-stage wheel disc through the screw 6 and pressing the gland above the first-stage wheel disc.
And step 22, operating a nut on the screw rod 6, and pressing down a gland corresponding to the first-stage wheel disc by the nut to enable the gland corresponding to the first-stage wheel disc to apply uniform force to the circumference of the first-stage wheel disc until the first-stage wheel disc is completely embedded into the connecting end of the first shaft disc 1.
The assembling method of the turbine rotor spindle further comprises the following steps:
And after the main shaft is assembled, processing a pin hole in the outer wall of the main shaft, and installing a fixing pin in the pin hole. The pin hole processing of the outer wall of the main shaft is as follows: changing the vertical state of the main shaft into the horizontal state, and installing the main shaft to a horizontal numerical control machining center; the horizontal numerical control machining center automatically indexes through the machining center, and an inner cooling drill bit and a reamer are matched to machine pin holes in the outer wall of the main shaft.
When the fixing pin is installed, the pressure plate 5, the base 4 and the plurality of screws 6 are removed.
The method for processing the pin hole in the outer wall of the main shaft and installing the fixing pin in the pin hole comprises the following steps:
And processing pin holes on the outer wall of the main shaft which is not shielded by the plurality of screws 6, and installing the fixing pins in the pin holes.
And (3) removing a part of the plurality of screws 6, processing pin holes on a part of the outer wall leaked from the main shaft, and installing the fixing pins in the pin holes.
A partially removed screw is mounted on the pressure plate 5 and the base 4, and the moment is restored.
And (3) removing the other part of the plurality of screws 6, processing pin holes on the other part of the outer wall leaked from the main shaft, and installing fixing pins in the pin holes.
The fixing pin is installed in the pin hole after being frozen. Specifically, in this embodiment, a temperature-controllable liquid nitrogen cooling box is used, the fixing pin is installed in the pin hole after being frozen, and the fixing pin can be firmly arranged in the pin hole according to the principle of thermal expansion and cold contraction, so that the connection of the main shaft is further fastened.
In order to more clearly describe the embodiments of the present invention, the following description is made in terms of the method of using the embodiments of the present invention.
The connecting end of the first shaft disc 1 is arranged in a groove of a positioning plate 4-3 of the base 4, and the extending end of the first shaft disc 1 sequentially penetrates through the second through hole and the second through hole to enter between the top plate 4-1 and the bottom plate 4-2. When the extending end of the first shaft disc 1 enters the base 4, the pressing plate 4-51 rotates to reach the extending end of the first shaft disc 1, the second bolt 4-53 penetrates through the pressing plate 4-51 and is screwed into the bottom plate 4-2 to fix the pressing plate 4-51, and the pressing plate 4-51 fixes the first shaft disc 1 to avoid shaking.
As the sizes of the plurality of wheel discs 3 are sequentially increased from bottom to top, the positioning plate 4-3 is provided with a plurality of guide rails, the guide rails correspond to the plurality of screw rods one by one, the screw rods 6 are slidably arranged in the corresponding guide rails through the sliding blocks, and the screw rods 6 are adjusted to slide in the guide rails according to the diameters of the wheel discs 3, so that the diameters of circular rings formed by the plurality of screw rods 6 are matched with the diameters of the wheel discs 3.
And embedding a first-stage wheel disc 3-1 in the plurality of wheel discs 3 into the connecting end of the first shaft disc 1 in a hot-assembling mode. In the process of cooling the wheel disc to room temperature, a gland corresponding to the first-stage wheel disc 3-1 penetrates through the screw rod 6 and is pressed above the first-stage wheel disc 3-1, a worker continuously operates a nut on the screw rod 6 at the same moment by using a torque wrench, the nut presses down the gland corresponding to the first-stage wheel disc 3-1, so that the gland corresponding to the first-stage wheel disc 3-1 exerts uniform force on the circumference of the first-stage wheel disc 3-1 until the first-stage wheel disc 3-1 is completely embedded into the connecting end of the first shaft disc 1, uniform force can be exerted on the circumference of the first-stage wheel disc 3-1 through the gland, the wheel disc is prevented from inclining, the wheel disc is continuously pressed down, gaps caused by axial cold shrinkage of the wheel disc are eliminated, deformation of a main shaft in the assembling process is avoided, and coaxiality of all. After the connecting end of the first-stage wheel disc 3-1 and the first shaft disc 1 is pressed tightly, the gland corresponding to the first-stage wheel disc 3-1 is removed from the screw 6.
Other wheel discs in the plurality of wheel discs 3 are embedded into the adjacent wheel discs in the mode of installing the first-stage wheel disc 3-1. The temperature change condition of the workpiece and the gap of the joint surface are constantly checked in the tightening process, so that the conditions of out-of-tolerance straightness and the like are prevented. Wherein, a plurality of wheel discs 3 are coaxially connected from bottom to top in sequence.
And after the main shaft is assembled, processing a pin hole in the outer wall of the main shaft, and installing a fixing pin in the pin hole. The second bolt and the second bolt 4-53 are screwed out from the bottom plate 4-2, the pressure plate 4-51 rotates around the first bolt 4-52 to be away from the extending end of the first shaft disc 1, the positioning plate 4-3 is detached from the top plate 4-1, the bottom plate 4-2 and the supporting plate 4-4 are taken away, the length is shortened, and the spindle is convenient to mount to a horizontal numerical control machining center.
And changing the vertical state of the main shaft into the horizontal state, and installing the main shaft to a horizontal numerical control machining center. The horizontal numerical control machining center automatically indexes through the machining center, and an inner cooling drill bit and a reamer are matched to machine pin holes in the outer wall of the main shaft. The error of the inner diameter of the pin hole after reaming basically reaches within 0.002mm along the length direction, the actual size of the pin hole is measured by using an inner diameter measuring instrument with the measuring precision reaching 0.001mm, the pin is matched and ground by using a centerless grinding machine according to the actual size of the pin hole, and the interference value between the pin hole and the fixing pin is controlled to be 0.003-0.005 mm. The positions of the pin holes are the embedding part of each wheel disc in the plurality of wheel discs 3, the embedding part of the first-stage wheel disc in the plurality of wheel discs 3 and the connecting end of the first shaft disc and the embedding part of the last-stage wheel disc in the plurality of wheel discs 3 and the connecting end of the second shaft disc, so that the connection firmness is further ensured.
And processing pin holes on the outer wall of the main shaft which is not shielded by the plurality of screws 6, installing the fixing pins in the pin holes, removing a part of the screws in the plurality of screws 6, processing the pin holes on the part of the outer wall leaked from the main shaft, and installing the fixing pins in the pin holes. And (3) mounting one part of the removed screw rods on the pressure plate 5 and the base 4, recovering the moment, removing the other part of the screw rods in the plurality of screw rods 6, processing pin holes on the other part of the outer wall of the main shaft, and mounting fixing pins in the pin holes. The outer wall of the main shaft is ensured to be uniformly provided with holes.
The liquid nitrogen cooling box with the controllable temperature is used for cooling the fixing pin and then installing the fixing pin into the pin hole, and the fixing pin can be firmly arranged in the pin hole through the principle of expansion with heat and contraction with cold, so that the connection of the main shaft is further fastened.
And when the fixing pin is installed, the pressure plate 5, the base 4 and the plurality of screws 6 are detached to obtain the spindle.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A turbine rotor spindle assembly apparatus, the spindle comprising: first reel, second reel and a plurality of rim plate, its characterized in that, turbine rotor main shaft assembly quality includes: the device comprises a base, a pressure plate, a plurality of screws and a plurality of glands;
The top of the base is provided with a first through hole, the extending end of the first shaft disc penetrates through the first through hole to be arranged in the base, and the connecting end of the first shaft disc is arranged on the base;
The screw rods are slidably arranged at the top of the base along the horizontal direction, and the gland is detachably connected with the screw rods along the vertical direction;
The wheel discs are pressed down through the corresponding glands when the wheel discs are assembled, and the corresponding glands are removed after the wheel discs are pressed down;
The pressing disc is detachably connected with the plurality of screw rods in the vertical direction, the extending end of the second shaft disc penetrates through the pressing disc, and the connecting end of the second shaft disc is connected with the wheel disc which is arranged in the wheel disc and is farthest away from the first shaft disc.
2. The turbine rotor spindle assembly apparatus of claim 1, said base including: the device comprises a top plate, a bottom plate, a positioning plate and a plurality of supporting plates;
The top plate is fixedly connected with the bottom plate through a plurality of supporting plates;
The locating plate is detachably arranged on the end face, deviating from the bottom plate, of the top plate.
3. The turbine rotor spindle assembly apparatus of claim 2, wherein:
A second through hole is formed in the positioning plate, and the second through hole is coaxial with the first through hole;
The end face, deviating from the top plate, of the positioning plate is provided with a groove, and the connecting end of the first shaft disc is arranged in the groove.
4. The turbine rotor spindle assembly apparatus of claim 2, wherein said base further comprises: a plurality of hold-down mechanisms;
The pressing mechanisms are uniformly arranged on the bottom plate at intervals around the axis of the first shaft disc;
The hold-down mechanism includes: the pressing plate, the first bolt and the second bolt;
The first end of the first bolt is arranged on the bottom plate, and the second end of the first bolt is rotatably connected with the pressure plate;
The second bolt penetrates through the pressing plate and is detachably connected with the bottom plate;
The end of the pressure plate far away from the first bolt can be in contact with the extending end of the first shaft disc.
5. The turbine rotor spindle assembly apparatus of claim 1, wherein:
A plurality of the screw rods are evenly arranged on the base at equal intervals.
6. A turbine rotor spindle assembling method, the turbine rotor spindle assembling apparatus according to any one of claims 1 to 5, comprising the steps of:
Supporting a first reel by a base;
Embedding a first-stage wheel disc in the plurality of wheel discs in a hot-mounting mode into the connecting end of the first shaft disc, compressing the first-stage wheel disc through a gland corresponding to the first-stage wheel disc, and removing the gland corresponding to the first-stage wheel disc from the screw rod after the first-stage wheel disc and the connecting end of the first shaft disc are compressed;
Other wheel discs in the plurality of wheel discs are embedded into the adjacent wheel discs in the installation mode of the first-stage wheel disc;
Embedding the connecting end of a second shaft disc into the last stage of the plurality of wheel discs in a hot-mounting mode, and pressing the connecting end of the second shaft disc tightly through a pressing disc;
And finishing the assembly of the main shaft.
7. The method of assembling a turbine rotor spindle according to claim 6, wherein said compressing a first stage disk with a gland corresponding to the first stage disk comprises the steps of:
Penetrating a gland corresponding to the first-stage wheel disc through the screw and pressing the gland above the first-stage wheel disc;
And operating a nut on the screw rod, and pressing down a gland corresponding to the first-stage wheel disc by the nut to enable the gland corresponding to the first-stage wheel disc to apply uniform force to the circumference of the first-stage wheel disc until the first-stage wheel disc is completely embedded into the connecting end of the first shaft disc.
8. The turbine rotor spindle assembly method of claim 6, further comprising:
After the main shaft is assembled, processing pin holes in the outer wall of the main shaft, and installing fixing pins in the pin holes;
And when the fixing pin is installed, the pressure plate, the base and the plurality of screws are detached.
9. The method of assembling a turbine rotor spindle according to claim 8, wherein said machining a pin bore in an outer wall of said spindle and installing a retaining pin in said pin bore comprises the steps of:
Processing pin holes in the outer wall of the main shaft which is not covered by the plurality of screws, and installing the fixing pins in the pin holes;
Removing a part of the screw rods, processing pin holes on a part of the outer wall leaked from the main shaft, and installing the fixing pins in the pin holes;
Installing a part of the disassembled screw on the pressure plate and the base, and recovering the moment;
And removing the other part of the plurality of screw rods, processing pin holes on the other part of the outer wall leaked from the main shaft, and installing the fixing pins in the pin holes.
10. The method of assembling a turbine rotor spindle according to claim 8, wherein:
And the fixing pin is arranged in the pin hole after being frozen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910467655.2A CN110238645B (en) | 2019-05-31 | 2019-05-31 | Turbine rotor spindle assembling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910467655.2A CN110238645B (en) | 2019-05-31 | 2019-05-31 | Turbine rotor spindle assembling device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110238645A CN110238645A (en) | 2019-09-17 |
| CN110238645B true CN110238645B (en) | 2020-07-31 |
Family
ID=67885608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910467655.2A Active CN110238645B (en) | 2019-05-31 | 2019-05-31 | Turbine rotor spindle assembling device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110238645B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112247522B (en) * | 2020-05-29 | 2022-02-22 | 中国航发沈阳发动机研究所 | Rotor press-fitting equipment |
| CN111734495B (en) * | 2020-05-29 | 2022-07-29 | 中国航发沈阳发动机研究所 | Rotor press-fitting method with interference fit of spigot |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2452932A (en) * | 2007-09-19 | 2009-03-25 | Siemens Ag | Turbine or turbomachine with axial shaft-mounted compressor and turbine blades |
| CN101852096A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Assembly method of draw bar type rotor disk of gas turbine |
| CN102116201A (en) * | 2011-02-22 | 2011-07-06 | 西安交通大学 | Disc-type rod fastening rotor structure for heavy-duty gas turbine |
| CN104533532A (en) * | 2014-11-26 | 2015-04-22 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Wheel disc spigot locating structure of gas turbine rotor and gas turbine rotor |
| CN105378225A (en) * | 2013-07-17 | 2016-03-02 | 西门子股份公司 | Rotor for a thermal turbomachine |
| CN106194436A (en) * | 2014-11-21 | 2016-12-07 | 斗山重工业株式会社 | There is gas turbine and the assemble method thereof of multiple pull bar |
| CN107269316A (en) * | 2017-08-17 | 2017-10-20 | 中南大学 | A kind of disc of conical profile structure of gas turbine central draw bar type rotor |
-
2019
- 2019-05-31 CN CN201910467655.2A patent/CN110238645B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2452932A (en) * | 2007-09-19 | 2009-03-25 | Siemens Ag | Turbine or turbomachine with axial shaft-mounted compressor and turbine blades |
| CN101852096A (en) * | 2010-05-22 | 2010-10-06 | 东方电气集团东方汽轮机有限公司 | Assembly method of draw bar type rotor disk of gas turbine |
| CN102116201A (en) * | 2011-02-22 | 2011-07-06 | 西安交通大学 | Disc-type rod fastening rotor structure for heavy-duty gas turbine |
| CN105378225A (en) * | 2013-07-17 | 2016-03-02 | 西门子股份公司 | Rotor for a thermal turbomachine |
| CN106194436A (en) * | 2014-11-21 | 2016-12-07 | 斗山重工业株式会社 | There is gas turbine and the assemble method thereof of multiple pull bar |
| CN104533532A (en) * | 2014-11-26 | 2015-04-22 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Wheel disc spigot locating structure of gas turbine rotor and gas turbine rotor |
| CN107269316A (en) * | 2017-08-17 | 2017-10-20 | 中南大学 | A kind of disc of conical profile structure of gas turbine central draw bar type rotor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110238645A (en) | 2019-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110238645B (en) | Turbine rotor spindle assembling device and method | |
| CN214815112U (en) | Auxiliary clamp for mechanical drilling | |
| EP2690256B1 (en) | Method and system for assembling and disassembling shells of turbomachines | |
| CN115625542A (en) | Clamping device is used in pipe fitting processing | |
| CN113928588A (en) | Air pressure reducer graphite lining crack repairing method | |
| CN112318408A (en) | High-pressure turbine rotor assembly air guide runway installation positioning device and method | |
| CN112496789B (en) | Mounting and adjusting process before reaming of nuclear main pump drill | |
| CN112192127B (en) | Assembly welding device | |
| CN212552581U (en) | Bearing dismounting device | |
| CN107598590B (en) | Precise tool for machining valve sleeve hole and valve sleeve machining equipment | |
| CN219274563U (en) | An auxiliary positioning device for drilling oblique holes at the end of tubular conductors | |
| CN214720745U (en) | Same-drilling reaming tool suitable for machining pin hole of main pump coupler | |
| CN113211339B (en) | A frock clamp for horizontal balanced of aviation turboshaft engine single-disk | |
| CN110819788B (en) | Limiting device for heat treatment of double-layer structure welding assembly and clamping method | |
| CN113977518B (en) | Precise assembly fixture and assembly method for bearing sleeve of supporting casing | |
| CN101670455A (en) | Drill jig of steam turbine rotor Y-shaped impeller pin hole and pin hole processing method thereof | |
| CN111421167B (en) | Group drilling jig for end face holes of shaft parts | |
| CN108907737B (en) | Connecting rod expanding machine | |
| CN107159913A (en) | A kind of cutter holder processed for materials in the tube end | |
| CN217703264U (en) | Large-scale adapter sleeve bearing preloading device | |
| CN222470397U (en) | A pipe spinning device with quick changeover | |
| CN222644246U (en) | Cubic boron nitride grinding wheel | |
| CN220922267U (en) | Indexable press-fitting attachment | |
| CN115213850B (en) | Decomposing method for adjusting pad | |
| CN221135071U (en) | Machine tool belt spindle unit brake mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |