CN214923214U - Device for grinding counter bore of wheel hole of steam turbine rotor - Google Patents
Device for grinding counter bore of wheel hole of steam turbine rotor Download PDFInfo
- Publication number
- CN214923214U CN214923214U CN202120877869.XU CN202120877869U CN214923214U CN 214923214 U CN214923214 U CN 214923214U CN 202120877869 U CN202120877869 U CN 202120877869U CN 214923214 U CN214923214 U CN 214923214U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- grinding
- grinding wheel
- wheel
- cuboid
- 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
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The utility model provides a device of grinding steam turbine rotor wheel hole counter bore, the utility model relates to an electronic grinding device of grinding steam turbine rotor wheel hole counter bore, the utility model discloses a solve pincers worker because the counter bore is very dark when the counter bore of coping steam turbine rotor wheel hole, bistrique chip removal difficulty causes the iron fillings of grinding to grind the hole and the problem of terminal surface of counter bore once more. It includes dabber and emery wheel, the dabber includes first cylinder, the second cylinder, cuboid and third cylinder, and the dabber is an object, processing has the second cylinder on the first cylinder, processing has the cuboid on the second cylinder, processing has the third cylinder on the cuboid, processing has the screw thread on the third cylinder, the emery wheel is the calathiform emery wheel, and the inside diameter of emery wheel increases from last to down in proper order, processing has square through hole on the emery wheel bottom surface, the cuboid of dabber is from the square through hole of third cylinder one end cartridge at the emery wheel, the bottom surface of emery wheel offsets with the top surface of the second cylinder of dabber, belong to the abrasive machining field.
Description
Technical Field
The utility model relates to an electronic grinding device of grinding steam turbine rotor wheel hole counter bore belongs to the abrasive machining field.
Background
The turbine rotor is the connect the via hole who is used for connecting two rotors to the wheel hole, it has the counter bore that sets up the nut to process on the wheel hole, because the structure of rotor interferes, the counter bore can only be anti-scraped surface processing, because scraper blade processing is only applicable to low rotational speed processing, the surface quality of the hole of processing back counter bore and terminal surface is not very ideal, can only reach Ra6.4, can not reach Ra3.2 of drawing requirement, so generally need the bench worker to grind again after the machining, but because the counter bore is very dark, the bistrique chip removal is difficult, the iron fillings that will cause the grinding grind bore and terminal surface of counter bore once more.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the pincers worker because the counter bore is very dark when coping steam turbine rotor counter bore to the wheel hole, bistrique chip removal difficulty causes the iron fillings of grinding to grind the hole of counter bore and the problem of terminal surface once more, and then provide a device of grinding steam turbine rotor counter bore.
The utility model adopts the technical proposal that:
it includes dabber and emery wheel, the dabber includes first cylinder, the second cylinder, cuboid and third cylinder, and first cylinder, the second cylinder, cuboid and third cylinder are one spare from bottom to top, processing has the second cylinder on the center department of the end top surface of first cylinder, processing has the cuboid on the bottom surface of the center department of second cylinder top surface, processing has the third cylinder on the bottom surface of the center department of cuboid top surface, processing has the screw thread on the surface of third cylinder, the emery wheel is the bowl shape emery wheel, and the inside diameter of emery wheel increases from last to bottom in proper order, processing has square through hole in the center department of emery wheel bottom surface, the cuboid of dabber is in the square through hole of emery wheel from third cylinder one end cartridge, the bottom surface of emery wheel offsets with the top surface of the second cylinder of dabber.
Has the advantages that:
this device adopts bowl shape emery wheel and dabber cooperation to use, the dabber is connected with the emery wheel fastening, this device after will installing is packed into on the chuck of electric drill, the pincers worker can be high-efficient through this device of operation electrodynamic rotation, quick grinding steam turbine rotor counter bore hole and terminal surface, processing has a plurality of chip grooves and chip removal hole on the emery wheel, the inside diameter of emery wheel increases from last to down in proper order, in the course of working because this device is electrodynamic rotation under the drive of electric drill, so the iron fillings that the emery wheel produced when using can be discharged to the motion of chip removal hole department along the internal surface of emery wheel under the effect of centrifugal force, guarantee can not influence the precision of the hole of steam turbine rotor counter bore hole and terminal surface because of iron fillings, the production efficiency is improved, the steam turbine rotor counter bore and the terminal surface of wheel hole after the processing can reach the technical requirement of drawing. The novel structure is simple, the production and the manufacture are easy, the cost is low, and the use on a large scale is convenient.
Drawings
Fig. 1 is an isometric view of the present invention;
fig. 2 is a front view of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view of FIG. 2;
fig. 5 is a sectional view of the working state of the present invention;
Detailed Description
The first embodiment is as follows: the embodiment is described by combining fig. 1-5, and the device for grinding the counter bore of the wheel hole of the steam turbine rotor comprises a mandrel 1 and a grinding wheel 2, wherein the mandrel 1 comprises a first cylinder 1-1, a second cylinder 1-2, a cuboid 1-3 and a third cylinder 1-4, the first cylinder 1-1, the second cylinder 1-2, the cuboid 1-3 and the third cylinder 1-4 are integrated from bottom to top, the second cylinder 1-2 is processed at the center of the top surface of the first cylinder 1-1, the cuboid 1-3 is processed at the center of the top surface of the second cylinder 1-2, the third cylinder 1-4 is processed at the center of the top surface of the cuboid 1-3, and threads are processed on the outer surface of the third cylinder 1-4, the grinding wheel 2 is a bowl-shaped grinding wheel, the diameter of the interior of the grinding wheel 2 is sequentially increased from top to bottom, and the device is arranged in such a way that the device is driven by an electric drill to rotate electrically, so that scrap iron generated when the grinding wheel 2 is used can move and be discharged to the chip removal hole along the inner surface of the grinding wheel 2 under the action of centrifugal force, a square through hole 2-1 is processed at the center of the bottom surface of the grinding wheel 2, a cuboid 1-3 of the mandrel 1 is inserted into the square through hole 2-1 of the grinding wheel 2 from one end of a third cylinder 1-4, so that the mandrel 1 is convenient to fix, the mandrel 1 and the grinding wheel 2 cannot loosen due to rotation when the mandrel 1 and the grinding wheel 2 are used, the bottom surface of the grinding wheel 2 abuts against the top surface of a second cylinder 1-2 of the mandrel 1, and the grinding wheel 2 is fixed by utilizing a nut and the second cylinder 1-2.
The second embodiment is as follows: the embodiment is described with reference to fig. 4, and the device for grinding the counter bore of the wheel hole of the steam turbine rotor in the embodiment is characterized in that the diameter of a first cylinder 1-1 of a mandrel 1 is smaller than that of a second cylinder 1-2, so that the first cylinder 1-1 is conveniently clamped in a jaw of an electric drill, the diagonal length of a cuboid 1-3 is smaller than that of the second cylinder 1-2, so that the grinding wheel 2 can be fixed on the mandrel 1 after the mandrel 1 is installed on the grinding wheel 2 and cannot slide off, the diameter of a third cylinder 1-4 is smaller than the shortest side length of the cuboid 1-3, so that the mandrel 1 is conveniently inserted into the grinding wheel 2 from one end of the third cylinder 1-4, and the rest is the same as the specific embodiment.
The third concrete implementation mode: the embodiment is described with reference to fig. 1-4, and the embodiment of the invention relates to a device for grinding counter bores of wheel holes of a steam turbine rotor, which further comprises a washer 3 and a nut 4, wherein the washer 3 is positioned on the lower surface of the inner part of a grinding wheel 2, the washer 3 is installed on a third cylinder 1-4 of a mandrel 1, the nut 4 is connected with external threads of the third cylinder 1-4 of the mandrel 1 through threads, and the nut 4 is installed on the upper surface of the washer 3, so that after the mandrel 1 is installed on the grinding wheel 2, the mandrel 1 is fixed on the grinding wheel 2 by using the washer 3 and the nut 4, the washer 3 is used for protecting the lower surface of the inner part of the grinding wheel 2, and the nut 4 cannot damage the lower surface of the inner part of the grinding wheel 2 after being screwed down, and the rest is the same as the first or second embodiment.
The fourth concrete implementation mode: the embodiment is described by combining figure 1, and the device for grinding the counter bore of the wheel bore of the steam turbine rotor is characterized in that a plurality of vertical chip grooves 2-2 are uniformly processed on the circumferential curved surface of a grinding wheel 2, a plurality of horizontal chip grooves 2-3 are uniformly processed on the upper end surface of the grinding wheel 2, each horizontal chip groove 2-3 on the upper end surface of the grinding wheel 2 is communicated with each vertical chip groove 2-2 on the outer side wall of the grinding wheel 2, a plurality of chip removal through holes 2-4 are processed on the bottom surface of the inner part of the grinding wheel 2, and the vertical chip grooves 2-2, the horizontal chip grooves 2-3 and the chip removal through holes 2-4 are all used for removing iron chips generated by grinding, so that the problems that the iron chips generated in the grinding process and the iron chips dropped from the grinding wheel 2 are unsmooth in chip removal, scratches are caused by grinding the surface of the counter bore, and the like are avoided, and the surface roughness is influenced Two or three are the same.
The fifth concrete implementation mode: the embodiment is described by combining fig. 3, and the device for grinding the counter bores of the wheel holes of the steam turbine rotor in the embodiment has the advantages that the plurality of chip removal through holes 2-4 are uniformly distributed in an annular shape, so that the iron chips can be conveniently discharged to the chip removal holes along the conical surface under the action of centrifugal force during grinding, and the rest of the device is the same as that of the first, second, third or fourth embodiment.
The sixth specific implementation mode: the embodiment is described by combining fig. 1-5, and the device for grinding the counter bore of the wheel hole of the steam turbine rotor in the embodiment is characterized in that the central axis of each vertical chip groove 2-2 is parallel to the central axis of the grinding wheel 2, the included angle between the central axis of each horizontal chip groove 2-3 and the normal line of the grinding wheel 2 is 10-15 degrees, the inclination angle direction is set according to the clockwise or anticlockwise rotation of the grinding wheel, so that scrap iron is discharged under the action of centrifugal force during grinding processing, the central axis of each horizontal chip groove 2-3 is vertical to the central axis of the grinding wheel 2, and the rest is the same as the first, second, third, fourth or fifth embodiment.
Principle of operation
When the device is used, the mandrel 1 is firstly inserted into the central square groove 2-1 of the grinding wheel 2 from the side of the cylinder 1-4, so that the bottom surface of the cylinder 1-2 is abutted against the outer bottom surface of the grinding wheel 2, then the gasket 3 penetrates through the cylinder 1-4 of the mandrel 1 and is placed on the inner bottom surface of the grinding wheel 2, the nut 4 and the cylinder 1-4 are screwed tightly through threads, so that the grinding wheel 2 is fastened on the mandrel 1, then the device after being installed is installed on a chuck of an electric drill, and a bench worker can efficiently grind the inner hole and the end surface of a counter bore of a wheel hole of a steam turbine rotor by operating the device which is electrically rotated.
Claims (6)
1. The utility model provides a device of grinding turbine rotor counter wheel hole counter bore which characterized in that: the grinding wheel comprises a mandrel (1) and a grinding wheel (2), wherein the mandrel (1) comprises a first cylinder (1-1), a second cylinder (1-2), a cuboid (1-3) and a third cylinder (1-4), the first cylinder (1-1), the second cylinder (1-2), the cuboid (1-3) and the third cylinder (1-4) are integrated from bottom to top, the second cylinder (1-2) is processed at the center of the top surface of the first cylinder (1-1), the cuboid (1-3) is processed at the center of the top surface of the second cylinder (1-2), the third cylinder (1-4) is processed at the center of the top surface of the cuboid (1-3), threads are processed on the outer surface of the third cylinder (1-4), the grinding wheel (2) is a bowl-shaped grinding wheel, the diameter of the interior of the grinding wheel (2) is sequentially increased from top to bottom, a square through hole (2-1) is machined in the center of the bottom surface of the grinding wheel (2), a cuboid (1-3) of the mandrel (1) is inserted into the square through hole (2-1) of the grinding wheel (2) from one end of a third cylinder (1-4), and the bottom surface of the grinding wheel (2) is abutted to the top surface of a second cylinder (1-2) of the mandrel (1).
2. An apparatus for grinding a counterbore of a steam turbine rotor in a wheel bore as defined in claim 1 wherein: the diameter of a first cylinder (1-1) of the mandrel (1) is smaller than that of a second cylinder (1-2), the length of a diagonal line of the cuboid (1-3) is smaller than that of the second cylinder (1-2), and the diameter of a third cylinder (1-4) is smaller than the shortest side length of the cuboid (1-3).
3. An apparatus for grinding a counterbore of a steam turbine rotor in a wheel bore as defined in claim 1 wherein: the grinding wheel grinding machine further comprises a gasket (3) and a nut (4), the gasket (3) is located on the lower surface inside the grinding wheel (2), the gasket (3) is installed on a third cylinder (1-4) of the mandrel (1), the nut (4) is in threaded connection with the outer thread of the third cylinder (1-4) of the mandrel (1), and the nut (4) is installed on the upper surface of the gasket (3).
4. An apparatus for grinding a counterbore of a steam turbine rotor in a wheel bore as defined in claim 1 wherein: a plurality of vertical chip removal grooves (2-2) are uniformly machined on the circumferential curved surface of the grinding wheel (2), a plurality of horizontal chip removal grooves (2-3) are uniformly machined on the upper end surface of the grinding wheel (2), each horizontal chip removal groove (2-3) is communicated with each vertical chip removal groove (2-2), and a plurality of chip removal through holes (2-4) are machined on the bottom surface inside the grinding wheel (2).
5. An apparatus for grinding a counterbore of a steam turbine rotor in a wheel bore according to claim 4 wherein: the plurality of chip removal through holes (2-4) are uniformly distributed in a ring shape.
6. An apparatus for grinding a counterbore of a steam turbine rotor in a wheel bore according to claim 4 wherein: the central axis of each vertical chip groove (2-2) is parallel to the central axis of the grinding wheel (2), the central axis of each horizontal chip groove (2-3) forms an included angle of 10-15 degrees with the normal line of the grinding wheel (2), the inclination angle direction is consistent with the rotation direction of the grinding wheel, and the central axis of each horizontal chip groove (2-3) is perpendicular to the central axis of the grinding wheel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877869.XU CN214923214U (en) | 2021-04-26 | 2021-04-26 | Device for grinding counter bore of wheel hole of steam turbine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120877869.XU CN214923214U (en) | 2021-04-26 | 2021-04-26 | Device for grinding counter bore of wheel hole of steam turbine rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214923214U true CN214923214U (en) | 2021-11-30 |
Family
ID=79067772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120877869.XU Active CN214923214U (en) | 2021-04-26 | 2021-04-26 | Device for grinding counter bore of wheel hole of steam turbine rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214923214U (en) |
-
2021
- 2021-04-26 CN CN202120877869.XU patent/CN214923214U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203712348U (en) | Milling fixture for impeller of air compressor | |
| CN214923214U (en) | Device for grinding counter bore of wheel hole of steam turbine rotor | |
| CN102133664B (en) | Ultrasonic whirling equipment for machining high-precision spiral line | |
| CN216327026U (en) | Cutter clamping device for grinding machine | |
| CN214723795U (en) | Impeller locating pin taking-out device between stages of steam turbine rotor | |
| CN114227331B (en) | Shaft finish machining fixture and shaft machining machine tool | |
| CN214519014U (en) | Lathe test piece positioning fixture | |
| CN104259912A (en) | Arc-surface part turning clamp | |
| CN212794540U (en) | Convenient novel thimble | |
| CN212735152U (en) | Mounting panel processing special fixture | |
| CN212145518U (en) | Self-centering elastic withdrawing device for workpiece | |
| CN220197331U (en) | End face grinding positioning fixture for compressor bearing cover | |
| CN219131948U (en) | Star gear inner circle grinding aid | |
| CN104589212A (en) | Automatic grinding universal positioning structure of bottom grinding machine | |
| CN205085503U (en) | Electrodynamic type chasing bar | |
| CN214487267U (en) | Reinforced internal and external grinding machine | |
| CN216327059U (en) | All-directional fine grinding machine for valve heads | |
| CN220613565U (en) | Die casting finish machining clamping device | |
| CN219337122U (en) | Lathe rough machining equipment for turbine impeller | |
| CN212793023U (en) | Centrifugal pump shell processing device | |
| CN213225206U (en) | Multi-station milling and grinding clamp | |
| CN219465420U (en) | Quick clamping fixture for cutter | |
| CN220547930U (en) | Milling assembly for embedded sealing groove of semiconductor equipment hole | |
| CN216176750U (en) | Tensioning tool for rotating target | |
| CN211890376U (en) | Flexible polishing clamp for inner hole |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |