CN112605814A - Grinding device for turbine rotor blade - Google Patents
Grinding device for turbine rotor blade Download PDFInfo
- Publication number
- CN112605814A CN112605814A CN202011474447.4A CN202011474447A CN112605814A CN 112605814 A CN112605814 A CN 112605814A CN 202011474447 A CN202011474447 A CN 202011474447A CN 112605814 A CN112605814 A CN 112605814A
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- Prior art keywords
- sliding table
- grinding
- sliding
- support
- rotor blade
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/08—Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/14—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by liquid or gas pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a grinding device for a turbine rotor blade, which comprises: the guide rail is arranged on one side of the fixed support, the fixed support comprises an arc-shaped support, and the inner diameter of the fixed support is the same as the diameter of a shroud of the rotor blade; the sliding block is connected with the guide rail and slides along the guide rail; the sliding table is connected with the sliding block and comprises a first sliding table and a second sliding table, one end of the first sliding table is connected with the sliding block, one end of the second sliding table is connected with the first sliding table in a sliding mode, and the first sliding table and the second sliding table are perpendicular to each other; and the polishing assembly is connected with the second sliding table in a sliding manner. The invention avoids the rotor from being transported back and forth, reduces the processing cost, shortens the maintenance period and improves the processing precision.
Description
Technical Field
The invention belongs to the field of machining equipment, and particularly relates to a grinding device for a steam turbine rotor blade.
Background
The steam turbine of the power plant runs for more than ten years, the blades of a certain stage can be replaced when the power plant is overhauled due to serious corrosion or damage of the rotor blades, and the blades are generally replaced directly on the site of the power plant due to long period and expensive transportation cost when the rotor returns to a manufacturing plant. The replaced blade shroud band needs to be polished axially and radially to ensure that the through-flow clearance meets the requirements. The existing method mainly comprises the steps of driving a grinding wheel by a motor, grinding by turning a rotor, directly grinding by holding a grinding machine by hand, and transporting the rotor to a nearby processing plant for machine tool processing. Therefore, it is important to provide a portable grinding device with high precision, which can directly reduce the maintenance cost.
Disclosure of Invention
In order to solve the technical problem, the invention provides a grinding device for a steam turbine rotor blade, which comprises a fixed support, wherein the fixed support is sleeved on the rotor blade, one side of the fixed support is connected with a guide rail, the guide rail is provided with a sliding block and a sliding table connected with the sliding block, the sliding table is provided with a grinding assembly, and the blade shroud band is directly processed in a power plant site.
The invention provides a grinding device for a turbine rotor blade, which comprises:
the guide rail is arranged on one side of the fixed support, the fixed support comprises an arc-shaped support, and the inner diameter of the fixed support is the same as the diameter of a shroud of the rotor blade;
the sliding block is connected with the guide rail and slides along the guide rail;
the sliding table is connected with the sliding block and comprises a first sliding table and a second sliding table, one end of the first sliding table is connected with the sliding block, one end of the second sliding table is connected with the first sliding table in a sliding mode, and the first sliding table and the second sliding table are perpendicular to each other;
and the polishing assembly is connected with the second sliding table in a sliding manner.
In one embodiment of the present invention, the guide rail includes a circular arc-shaped guide rail, an inner diameter of the guide rail is larger than an inner diameter of the fixing bracket, and the inner diameter of the guide rail is smaller than an outer diameter of the fixing bracket.
In one embodiment of the present invention, the first slide table includes:
one end of the first support is connected with the sliding block, and two ends of the first support are provided with first baffle plates;
the first ball screw is arranged between the first baffle plates at the two ends of the first support and is rotationally connected with the first baffle plates;
the first driving device is arranged on the first support and located at one end far away from the sliding block, and the first driving device is connected with the first ball screw.
In one embodiment of the invention, one end of the second sliding table is connected with the first sliding table in a sliding mode through the first ball screw.
In one embodiment of the invention, the first driving means comprises a first motor or a first manual wheel.
In one embodiment of the present invention, the second slide table includes:
one end of the second support is connected with the first sliding table, and second baffle plates are arranged at two ends of the second support;
the second ball screw is arranged between the second baffles at the two ends of the second bracket and is rotationally connected with the second baffles;
and the second driving device is arranged on the second support and is positioned at one end far away from the first sliding table, and the second driving device is connected with the second ball screw.
In one embodiment of the invention, the second driving means comprises a second motor or a second manual roller.
In one embodiment of the invention, the grinding assembly comprises:
the fixed block is connected with the second ball screw in a sliding manner;
one end of the grinding machine penetrates through the fixed block and is connected with the fixed block through a screw;
and the grinding wheel is arranged at the other end of the grinding machine and is connected through a bolt.
In one embodiment of the invention, the width of the sander after installation of the grinding wheel is less than the axial spacing between the rotor blades.
In one embodiment of the invention, a compressed air source is connected to the end of the sander that passes through the fixed block.
The invention provides a grinding device for a steam turbine rotor blade, which comprises a fixed support, wherein the fixed support is sleeved on the rotor blade, one side of the fixed support is provided with a guide rail, the inner diameter of the fixed support is the same as the diameter of a surrounding belt of the rotor blade, the inner diameter of the guide rail is larger than that of the fixed support, the inner diameter of the guide rail is smaller than the outer diameter of the fixed support, the guide rail is connected with a slide block, the slide block can do circular motion along the guide rail, the slide block is connected with a sliding table, the sliding table comprises a first sliding table and a second sliding table, one end of the first sliding table is connected with the slide block, one end of the second sliding table is connected with the second sliding table in a sliding manner, the first sliding table and the second sliding table are mutually vertical, and the first sliding table and the second sliding table are connected through a first ball screw rod, one end of the first sliding table is provided with a first motor or a first manual roller, the first motor or the first manual roller is connected with the first ball screw, the first motor or the first manual roller is positioned at one end far away from the sliding block, the polishing assembly is connected with the second sliding table in a sliding mode through a second ball screw, one end of the second sliding table is provided with a second motor or a second manual roller, the second motor or the second manual roller is connected with the second ball screw, the second motor or the second manual roller is positioned at one end far away from the first sliding table, and the position of the polishing assembly can be adjusted through the first motor or the first manual roller and the second motor or the second manual roller so as to process the rotor blade. The blade shroud can be directly polished on site, the rotor can be prevented from being transported back and forth on the premise of meeting the machining precision, the machining cost is greatly reduced, and the maintenance period is shortened.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a grinding device for a steam turbine rotor blade according to the present invention.
Fig. 2 is a partially enlarged schematic view of a grinding device for a steam turbine rotor blade according to the present invention.
Fig. 3 is a schematic structural diagram of a grinding assembly in the grinding device for the steam turbine rotor blade according to the present invention.
Figure 4 is a schematic diagram of another embodiment of a sanding assembly according to the present invention.
FIG. 5 is a schematic view of a grinding device and rotor blade mounting arrangement according to the present invention.
Description of reference numerals:
10 fixed support
101 rotor blade
102 guide rail
20 sliding block
201 first bolt
30 sliding table
31 first sliding table
311 first support
312 first ball screw
313 first driving device
314 first baffle
32 second sliding table
321 second support
322 second ball screw
323 second driving device
324 second baffle
40 grinding assembly
401 second bolt
41 fixed block
411 connecting piece
412 fastener
42 sander
421 first part
422 second part
43 grinding wheel
402 third bolt
403 fourth bolt
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
In order to solve the problems that the blade is difficult to process and the processing precision is poor after the blade of the steam turbine rotor is replaced on site in the maintenance of a power plant, the invention provides a grinding device of the steam turbine rotor blade, as shown in figure 1, the grinding device comprises: the fixed support 10, the slide block 20, the sliding table 30 and the grinding assembly 40.
As shown in fig. 1 and 5, in this embodiment, the polishing apparatus includes a fixing support 10, the fixing support 10 includes an arc-shaped support, an inner diameter of the fixing support 10 is the same as a diameter of the rotor blade 101, the fixing support 10 is divided into two halves, the fixing support 10 is sleeved on a shroud of the rotor blade 101 when the rotor blade 101 is processed, the inner diameter of the fixing support 10 is adapted to the shroud diameter of the rotor blade 101, in some embodiments, the fixing support 10 is divided into a first portion and a second portion along a diameter, and the first portion and the second portion are fastened and connected by bolts, so that the fixing support 10 is convenient to detach or mount, and convenience in transportation and storage is improved. In this embodiment, a guide rail 102 is arranged on one side of the fixing bracket 10, the guide rail 102 is also set to be an arc-shaped guide rail, the inner diameter of the guide rail 102 is larger than the inner diameter of the fixing bracket 10, the inner diameter of the guide rail 102 is smaller than the outer diameter of the fixing bracket 10, so as to ensure that the slider 20 slides normally on the guide rail 102, and ensure that the grinding process on the rotor blade 101 is normally performed, in this embodiment, the guide rail 102 is connected with the fixing bracket 10 through a bolt, so as to facilitate the detachment or installation, and improve the convenience of transportation and storage. In this embodiment, the fixing bracket 10 and the guide rail 102 are both made of aviation aluminum, which is convenient to carry and improves the convenience of transportation and storage.
As shown in fig. 2 and fig. 5, in this embodiment, the polishing device further includes a sliding block 20 and a sliding table 30, where the sliding block 20 is slidably connected to the guide rail 102, that is, the sliding block 20 can perform a circular motion along the guide rail 102, so as to polish the rotor blade 101, and improve convenience and efficiency of polishing. In this embodiment, the sliding table 30 is connected to the sliding block 20, and is fixedly connected to the sliding block 20 through the first bolt 201, so that the sliding table 30 and the sliding block 20 can be conveniently detached or installed, and the convenience of transportation and storage is improved.
As shown in fig. 2, in this embodiment, the sliding table 30 includes a first sliding table 31 and a second sliding table 32, one end of the first sliding table 31 is fixedly connected to the sliding block 20, the first sliding table 31 is fixedly connected to the sliding block 20 through a first bolt 201, so as to be conveniently detached or installed, and the convenience of transportation and storage is improved, one end of the second sliding table 32 is slidably connected to the first sliding table 31, that is, the second sliding table 32 can be moved along the first sliding table 31, in this embodiment, the sliding table 30 is made of aviation aluminum, so that the carrying is convenient, and the convenience of transportation and storage is improved.
As shown in fig. 2, in this embodiment, the first sliding table 31 includes a first bracket 311, a first ball screw 312 and a first driving device 313, one end of the first bracket 311 is connected to the slider 20, two ends of the first bracket 311 are respectively provided with a first baffle 314, the first baffle 314 at one end of the first bracket 311 is fixedly connected to the slider 20 through a first bolt 201, that is, one end of the first sliding table 31 is fixedly connected to the slider 20, so as to facilitate detachment or installation, and improve convenience in transportation and storage.
As shown in fig. 2, the first ball screw 312 is disposed between the first baffles 314 at both ends of the first bracket 311, and is rotatably connected to the first baffles 314, that is, the first ball screw 312 is rotatable on the first baffles 314 around the axis of the first ball screw 312. The first driving device 313 is disposed on the first bracket 311 at an end away from the slider 20, and the first driving device 313 is connected to the first ball screw 312, and the first ball screw 312 can rotate on the first baffle 314 around the axis of the first ball screw 312 under the driving of the first driving device 313. In this embodiment, the first driving device 313 is, for example, configured as a first motor or a first manual roller, and the first motor or the first manual roller is connected to the first ball screw 312 to drive the first ball screw 312 to rotate, so as to change the processing position and the processing feeding amount, and improve the processing efficiency and the accuracy.
As shown in fig. 2 and 5, in the embodiment, one end of the second sliding table 32 is slidably connected to the first sliding table 31 through the first ball screw 312, and under the driving of the first driving device 313, the first ball screw 312 rotates on the first baffle 314, so as to drive the second sliding table 32 to slide on the first sliding table 31, thereby changing the position of the grinding assembly 40, so as to perform grinding processing on different positions of the rotor blade 101, thereby improving the grinding efficiency, and during the processing, by changing the position thereof, the feeding amount of the processing is changed, thereby improving the processing accuracy.
As shown in fig. 2, in the present embodiment, the second sliding table 32 includes a second bracket 321, a second ball screw 322 and a second driving device 323, two ends of the second bracket 321 are respectively provided with a second baffle 324, and the second baffle 324 at one end of the second bracket 321 is connected to the first sliding table 31 and slidably connected through the first ball screw 312. The second ball screw 322 is disposed between the second baffles 324 at two ends of the second bracket 321, and is rotatably connected to the second baffles 324, that is, the second ball screw 322 can rotate on the second baffles 324 around the axis of the second ball screw 322, so as to drive the polishing assembly 40 to move on the second sliding table 32.
As shown in fig. 2, in the present embodiment, the second driving device 323 is disposed on the second bracket 321 at an end away from the first sliding table 31, and the second driving device 323 is connected to the second ball screw 322, and the second ball screw 322 can rotate on the second baffle 324 around the axis of the second ball screw 322 under the driving of the second driving device 323. In this embodiment, the second driving device 323 is, for example, configured as a second motor or a second manual roller, and the second motor or the second manual roller is connected to the second ball screw 322 to drive the second ball screw 322 to rotate, so as to adjust the position of the grinding assembly 40, change the machining position and the machining feed amount, and improve the machining efficiency and precision.
As shown in fig. 2, in the present embodiment, the grinding assembly 40 is slidably connected to the second sliding table 32 through a second ball screw 322, and is driven by a second driving device 323, so as to adjust the position of the grinding device 40. The grinding assembly 40 comprises a fixed block 41, a grinding machine 42 and a grinding wheel 43, one side of the fixed block 41 is slidably connected with the second sliding table 32 through the second ball screw 322, one end of the grinding machine 42 penetrates through the fixed block 41 and is connected through a second bolt 401, the other end of the grinding machine 42 is connected with the grinding wheel 43, in the embodiment, the grinding wheel 43 is set to be a bowl-shaped grinding wheel for example, and is connected with the grinding machine 42 through a third bolt 402, and the grinding wheel 43 is convenient to replace. In the present embodiment, the width of the grinding machine 42 after the grinding wheel 43 is mounted is smaller than the axial interval between the rotor blades 101, so that the grinding device is convenient to operate during grinding, and damage to other blades during grinding of one of the blades is avoided.
As shown in fig. 2 and 5, in some embodiments, the fixing block 41 includes a connecting member 411 and a fixing member 412, the connecting member 411 is slidably connected to the second ball screw 322, the fixing member 412 is fixedly connected to the connecting member 411 through a fourth bolt 403, one end of the sander 42 passes through the fixing member 412 and is connected to the fixing member 412 through a second bolt 401, so as to facilitate the detachment or installation of the sanding assembly 40 and the sliding table 30, and improve the convenience of transportation and storage. In this embodiment, a compressed air source (not shown) is connected to one end of the grinding machine 42 penetrating through the fixing block 41, and the grinding machine 42 is driven by the compressed air source to grind the rotor blade 101.
As shown in fig. 2 and 5, in the present embodiment, the grinding assembly 40 is slidably connected to the second sliding table 32, under the driving action of the second driving device 323, the grinding assembly 40 is moved on the second sliding table 32 along the Y direction by the second ball screw 322, so that the grinding position adjustment and the feed amount adjustment of the rotor blade 101 in the Y direction by the grinding assembly 40 are realized, at the same time, the second sliding table 32 is slidably connected to the first sliding table 31 by the first ball screw 312, under the driving action of the first driving device 313, the second sliding table 32 is moved on the first sliding table 31 along the X direction by the first ball screw 312, so that the grinding assembly 40 is moved in the X direction, so that the grinding position adjustment and the feed amount adjustment of the rotor blade 101 in the X direction by the grinding assembly 40 are realized, and further, through the guide rail 102 is an arc-shaped guide rail, around rotor blade 101, slip table 30 accessible slider 20 slides on guide rail 102 to make grinding assembly 40 can rotate around rotor blade 101 axis, to the whole circumference surface of rotor blade 101 is polished, through the aforesaid setting, makes grinding device can adjust in real time the position of polishing and the feed amount of polishing in the process of polishing rotor blade 101, thereby improves the convenience and the precision of polishing, and need not dismantle repeatedly and install, has improved the efficiency of polishing.
As shown in fig. 2 and 3, in the present embodiment, in order to polish both sides of the shroud of the rotor blade 101, the polishing machine 42 is, for example, L-shaped, and the L-shaped polishing machine includes a first portion 421 and a second portion 422, one end of the first portion 421 passes through the fixing block 41 and is fixedly connected by a second bolt 401, one end of the first portion 421 passing through the fixing block 41 is connected with a compressed air source (not shown in the drawings), the rotor blade 101 is polished by driving the polishing machine 42 by the compressed air source, the other end of the first portion 421 is connected with one end of the second portion 422, the other end of the second portion 422 is provided with a grinding wheel 43, and the width of the second portion 422 after being provided with the grinding wheel 43 is smaller than the axial interval between the rotor blades 101, so that the polishing device is convenient to operate during polishing, and avoid when polishing one of them blade, cause the damage to other blades. In the embodiment, as shown in fig. 4, in order to process the top of the shroud of the rotor blade 101, the grinding machine 42 is arranged vertically, one end of the grinding machine 42 passes through the fixing block 41 and is connected with a compressed air source (not shown), and the other end of the grinding machine 42 is connected with the grinding wheel 43 to grind the top of the shroud of the rotor blade 101, so that the grinding convenience, the grinding efficiency and the grinding precision are improved.
As shown in fig. 2 and 5, the grinding device for the turbine rotor blade according to the present invention works as follows: installing a fixed bracket 10 on a shroud of a blade of a certain level adjacent to the blade to be processed, specifically according to the inner diameter of the fixed bracket 10 and the diameter of the shroud of the blade, installing a slide block 20 on a guide rail 102, screwing a sliding table 30 on the slide block 20 by using a first bolt 201, installing a fixed block 41, passing one end of a grinding machine 42 through the fixed block 41, adjusting the proper direction, locking by using a second bolt 401, installing a grinding wheel 43 and screwing by using a third bolt 402, connecting one end of the grinding machine 42 passing through the fixed block 41 with an external compressed air source (not shown in the figure), starting the grinding machine 42, controlling the grinding machine 42 to move along the X direction by using a first driving device 313, controlling the grinding machine 42 to move along the Y direction by using a second driving device 323, aligning the grinding wheel 43 with the shroud of the blade to be processed, positioning, and then controlling the feeding amount and the position of the grinding wheel 43 by using the first driving device 313, the blade shroud machining is performed by moving the hand sander 42 circumferentially on the guide rail 102. When machining the other side of the rotor blade 101, the sander is simply rotated 180 degrees, using the same method described above. When the top of the blade shroud is processed, only a straight-head grinding machine needs to be selected. The grinding device for the steam turbine rotor blade provided by the invention can adjust the grinding position and the grinding feeding amount in real time in the grinding process of the rotor blade 101, so that the grinding convenience and the grinding precision are improved, repeated disassembly and assembly are not needed, and the grinding efficiency is improved.
The invention provides a grinding device for a steam turbine rotor blade, which comprises a fixed support, wherein the fixed support is sleeved on the rotor blade, one side of the fixed support is provided with a guide rail, the inner diameter of the fixed support is the same as the diameter of a shroud of the rotor blade, the inner diameter of the guide rail is larger than that of the fixed support, the inner diameter of the guide rail is smaller than the outer diameter of the fixed support, the guide rail is connected with a sliding block, the sliding block can do circular motion along the guide rail, the sliding block is connected with a sliding table, the sliding table comprises a first sliding table and a second sliding table, the first sliding table comprises a first support, a first ball screw and a first driving device, one end of the first support is connected with the sliding block, and two ends of the first support are provided with first baffle plates; the first ball screw is arranged between the first baffle plates at the two ends of the first support and is rotationally connected with the first baffle plates; the first driving device is arranged on the first support and located at one end far away from the sliding block, and the first driving device is connected with the first ball screw. The second slip table with first slip table is connected, the second slip table includes: the second ball screw is arranged between the second baffles at the two ends of the second support and is in rotary connection with the second baffles; the second driving device is arranged on the second support and is positioned at one end far away from the first sliding table, the second driving device is connected with the second ball screw, the polishing assembly is connected with the second sliding table, the polishing assembly comprises a fixed block, a polishing machine and a grinding wheel, and the fixed block is connected with the second ball screw in a sliding manner; one end of the grinding machine penetrates through the fixed block and is connected with the fixed block through a screw; the grinding wheel is arranged at the other end of the grinding machine and connected through a bolt, the grinding assembly is enabled to rotate around the rotor blade through the arrangement of the guide rail and the sliding block, the whole circumferential outer surface of the blade rotor is ground, the position and the feeding amount of the grinding machine are adjusted through the first driving device and the second driving device, the grinding position and the grinding feeding amount can be adjusted in real time in the grinding process of the rotor blade by the grinding device, the grinding convenience and the grinding precision are improved, the grinding machine does not need to be repeatedly disassembled and installed, and the grinding efficiency is improved. The grinding device for the steam turbine rotor blade provided by the invention can be used for directly grinding the blade shroud band on site, and can avoid the rotor from being transported back and forth on the premise of meeting the machining precision, thereby greatly reducing the machining cost and shortening the maintenance period.
The above description is only a preferred embodiment of the present application and the explanation of the technical principle used, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.
Other technical features than those described in the specification are known to those skilled in the art, and are not described herein in detail in order to highlight the innovative features of the present invention.
Claims (10)
1. A grinding device for a steam turbine rotor blade is characterized by comprising:
the guide rail is arranged on one side of the fixed support, the fixed support comprises an arc-shaped support, and the inner diameter of the fixed support is the same as the diameter of a shroud of the rotor blade;
the sliding block is connected with the guide rail and slides along the guide rail;
the sliding table is connected with the sliding block and comprises a first sliding table and a second sliding table, one end of the first sliding table is connected with the sliding block, one end of the second sliding table is connected with the first sliding table in a sliding mode, and the first sliding table and the second sliding table are perpendicular to each other;
and the polishing assembly is connected with the second sliding table in a sliding manner.
2. The apparatus of claim 1, wherein the rail comprises a circular arc shaped rail, the rail having an inner diameter greater than an inner diameter of the mounting bracket and an inner diameter less than an outer diameter of the mounting bracket.
3. The grinding device for a steam turbine rotor blade according to claim 1, wherein the first slide table includes:
one end of the first support is connected with the sliding block, and two ends of the first support are provided with first baffle plates;
the first ball screw is arranged between the first baffle plates at the two ends of the first support and is rotationally connected with the first baffle plates;
the first driving device is arranged on the first support and located at one end far away from the sliding block, and the first driving device is connected with the first ball screw.
4. The grinding device for the steam turbine rotor blade according to claim 3, wherein one end of the second sliding table is slidably connected with the first sliding table through the first ball screw.
5. The grinding apparatus for steam turbine rotor blades according to claim 3, wherein the first driving means comprises a first motor or a first manual roller.
6. The grinding device for a steam turbine rotor blade according to claim 1, wherein the second slide table includes:
one end of the second support is connected with the first sliding table, and second baffle plates are arranged at two ends of the second support;
the second ball screw is arranged between the second baffles at the two ends of the second bracket and is rotationally connected with the second baffles;
and the second driving device is arranged on the second support and is positioned at one end far away from the first sliding table, and the second driving device is connected with the second ball screw.
7. The grinding apparatus for steam turbine rotor blades according to claim 6, wherein the second driving means comprises a second motor or a second manual roller.
8. The grinding apparatus for steam turbine rotor blades according to claim 6, wherein the grinding assembly comprises:
the fixed block is connected with the second ball screw in a sliding manner;
one end of the grinding machine penetrates through the fixed block and is connected with the fixed block through a screw;
and the grinding wheel is arranged at the other end of the grinding machine and is connected through a bolt.
9. The apparatus of claim 8, wherein said grinder has a width after mounting said grinding wheel that is less than the axial spacing between said rotor blades.
10. The apparatus of claim 8, wherein a source of compressed air is connected to the sander through the end of the fixture block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011474447.4A CN112605814A (en) | 2020-12-14 | 2020-12-14 | Grinding device for turbine rotor blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011474447.4A CN112605814A (en) | 2020-12-14 | 2020-12-14 | Grinding device for turbine rotor blade |
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| Publication Number | Publication Date |
|---|---|
| CN112605814A true CN112605814A (en) | 2021-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011474447.4A Pending CN112605814A (en) | 2020-12-14 | 2020-12-14 | Grinding device for turbine rotor blade |
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| CN (1) | CN112605814A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683137A (en) * | 2022-03-30 | 2022-07-01 | 江苏绿能汽配科技有限公司 | Automobile rectifier bridge mould processingequipment that polishes |
| CN115122193A (en) * | 2022-08-05 | 2022-09-30 | 上海电气电站设备有限公司 | Auxiliary device for grinding wheel disc blade top |
| CN115351663A (en) * | 2022-09-20 | 2022-11-18 | 河北交通职业技术学院 | Grinding device for tunnel secondary lining trolley template |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114683137A (en) * | 2022-03-30 | 2022-07-01 | 江苏绿能汽配科技有限公司 | Automobile rectifier bridge mould processingequipment that polishes |
| CN115122193A (en) * | 2022-08-05 | 2022-09-30 | 上海电气电站设备有限公司 | Auxiliary device for grinding wheel disc blade top |
| CN115122193B (en) * | 2022-08-05 | 2024-03-19 | 上海电气电站设备有限公司 | Wheel disc blade top grinding auxiliary device |
| CN115351663A (en) * | 2022-09-20 | 2022-11-18 | 河北交通职业技术学院 | Grinding device for tunnel secondary lining trolley template |
| CN115351663B (en) * | 2022-09-20 | 2023-08-25 | 河北交通职业技术学院 | Polishing device for tunnel two-lining trolley template |
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