Correction processing device

Abstract

The present invention provides a correction processing device that can easily perform correction processing on a processing object even when there is an interfering object with a larger diameter than the processing object. The correction processing device (11) comprises: a support body (12) placed and fixed on a floor (10); a ring table (13) supported by the support body (12); a rotating ring (14) rotatably supported by the ring table (13) and arranged on the outer peripheral side of a collector ring (4A); a ring motor (15) that rotates the rotating ring (14); and a tool (16) mounted on the rotating ring (14) and performing correction processing on the collector ring (4A). The ring table (13) is a structure that can be divided into a lower dividing table (34A) and an upper dividing table (34B). The rotating ring (14) is a structure that can be divided into a lower dividing ring (35A) and an upper dividing ring (35B).

Description

Technical Field

[0001] The present invention relates to a device for performing correction processing on a cylindrical or columnar processing object. Background Art

[0002] Patent document 1 discloses a device that is mounted on a rotating shaft of a generator and performs correction processing on the surface of the rotating shaft (specifically, the sliding surface with the bearing). The correction processing device includes: a fixed portion on one side, which is mounted on one side in the longitudinal direction of the rotating shaft; a fixed portion on the other side, which is mounted on the other side in the longitudinal direction of the rotating shaft; a rotating mechanism portion, which is arranged between the fixed portion on one side and the fixed portion on the other side and can rotate around the rotating shaft; and a motor that rotates the rotating mechanism portion via a gear mechanism. The rotating mechanism portion includes: a support portion on one side, which is arranged on one side in the longitudinal direction of the rotating shaft; a support portion on the other side, which is arranged on the other side in the longitudinal direction of the rotating shaft; a plurality of guides connected between the support portion on one side and the support portion on the other side; a transverse portion, which can move along the plurality of guides (that is, in the longitudinal direction of the rotating shaft); a motor that moves the transverse portion in the longitudinal direction of the rotating shaft via a feed mechanism; and a cutting tool that is provided on the transverse portion and performs correction processing on the surface of the rotating shaft.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2019-18273 (reference Figure 1-Figure 5 ) Summary of the invention

[0006] Problems to be solved by the invention

[0007] In addition, the rotating shaft of the generator includes, for example, a rotating shaft having a pair of collector rings and a fan located between the pair of collector rings and having a larger diameter than the collector rings. The surface of the collector ring is abutted by the brushes, so it is possible that uneven wear occurs due to long-term use. Therefore, in, for example, regular inspections, there is a need to perform correction processing on the surface of the collector ring. In particular, it takes time to remove the rotating shaft from the generator, so there is a need to perform correction processing on the surface of the collector ring directly when the rotating shaft of the generator is in an installed state.

[0008] As a structure of a device for directly performing correction processing on the slip rings while the rotating shaft of the generator is in an installed state, a structure is considered in which the slip rings are corrected by a tool in a stationary state while the rotating shaft of the generator is rotated. However, in this case, if the generator is in a state of being unable to operate during, for example, a period of regular inspection, the slip rings cannot be corrected. That is, the timing of the correction processing of the slip rings is limited, and it is difficult to ensure the schedule (for example, several days). Alternatively, in order to ensure the schedule for the correction processing of the slip rings, there is a possibility that the period of regular inspection becomes longer, and the operation recovery of the generator is delayed.

[0009] Therefore, as a structure of a device for directly performing correction processing on the slip ring while the rotating shaft of the generator is in an installed state, a structure in which a tool is rotated is considered as in Patent Document 1. However, if there is a fan (interference object) having a larger diameter than the slip ring (object to be processed) as described above, it is difficult to mount the device on the rotating shaft as in Patent Document 1. Alternatively, it is difficult to perform correction processing on both slip rings.

[0010] The present invention has been made in view of the above circumstances, and one of the objects thereof is to easily perform correction processing of the object to be processed even when there is an interfering object having a larger diameter than the object to be processed.

[0011] Means for solving problems

[0012] In order to solve the above-mentioned problems, the correction processing device of the present invention comprises: a support body, which is arranged and fixed on a floor; a ring table, which is supported by the above-mentioned support body; a rotating ring, which is rotatably supported by the above-mentioned ring table and is arranged on the outer peripheral side of a cylindrical or columnar processing object; a ring motor, which rotates the above-mentioned rotating ring; and a tool, which is installed on the above-mentioned rotating ring and performs correction processing on the above-mentioned processing object, and the above-mentioned ring table and the above-mentioned rotating ring are structures that can be divided into a lower side part and an upper side part respectively.

[0013] Effects of the Invention

[0014] According to the present invention, even when there is an interfering object having a larger diameter than the object to be processed, correction processing of the object to be processed can be easily performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view showing the structure of a generator including a device for processing an object according to one embodiment of the present invention.

[0016] Figure 2 It is a front view showing the structure of the correction processing device according to one embodiment of the present invention.

[0017] Figure 3It is a plan view showing the structure of a correction processing device according to one embodiment of the present invention.

[0018] Figure 4 It is a side view showing the structure of a correction processing device according to one embodiment of the present invention.

[0019] Figure 5 It is a side view showing the structure of the correction processing device according to one embodiment of the present invention, and shows a state in which the ring table and the rotating ring are separated.

[0020] Figure 6 It is a front view showing the structure of a correction processing device according to a modified example of the present invention.

[0021] In the figure:

[0022] 4A, 4B—collector rings, 10—floor, 11—correction processing device, 12—support body, 13—ring table, 14—rotating ring, 15—ring motor, 16—tool, 25A, 25B—moving mechanism, 34A, 34B—dividing table, 35A, 35B—dividing ring. DETAILED DESCRIPTION

[0023] use Figure 1 to Figure 5 An embodiment of the present invention will be described.

[0024] Figure 1 It is a front view showing the structure of a generator as a device including a processing object according to the present embodiment. Figure 2 This is a front view showing the structure of the correction processing device of this embodiment (from Figure 3 (viewed in the direction of arrow II). Figure 3 1 is a plan view showing the structure of the correction processing device of this embodiment (from Figure 2 (viewed in the direction of arrow III). Figure 4 1 is a side view showing the structure of the correction processing device of this embodiment (from Figure 3 (viewed in the direction of arrow IV). Figure 5 It is a side view of the structure of the correction processing device according to the present embodiment, and shows a state in which the ring table and the rotating ring are separated.

[0025] The device of this embodiment is a generator 1 installed on a floor 10. The generator 1 includes a rotating shaft 2 extending in the horizontal direction, a rotor coil and the like (not shown) installed on the rotating shaft 2, a stator frame 3, and a stator coil and the like (not shown) installed on the stator frame 3 and arranged on the outer peripheral side of the rotor. The rotating shaft 2 of the generator 1 includes a pair of slip rings 4A, 4B and a fan 5 located between the slip rings 4A, 4B and having a larger diameter than the slip rings 4A, 4B.

[0026] The correction processing device 11 of this embodiment directly performs correction processing on the collector rings 4A and 4B (cylindrical processing objects) with the rotating shaft 2 of the generator 1 in an installed state. The correction processing device 11 includes: a support body 12, which is installed and fixed to the floor 10; a ring table 13, which is supported by the support body 12; a rotating ring 14, which is rotatably supported by the ring table 13 and is arranged on the outer peripheral side of the collector ring 4A or 4B; a ring motor 15, which rotates the rotating ring 14; and a tool 16, which is installed on the rotating ring 14 and performs correction processing on the collector ring 4A or 4B.

[0027] The support body 12 includes: a base plate 17, which is arranged on the floor 10 and is fixed by using a plurality of fixing parts (not shown); a base 18, which is arranged on the upper side of the base plate 17; a level adjustment mechanism (details will be described later) that adjusts the level of the base 18; a position adjustment mechanism (details will be described later) that adjusts the position of the base 18; and a plurality of (four in this embodiment) clamps 20 that fix the base 18 relative to the frame 19 of the base plate 17.

[0028] The level adjustment mechanism includes a plurality of (nine in this embodiment) threaded holes formed in the base 18 and penetrating in the vertical direction, and a plurality of (nine in this embodiment) level adjustment screws 21 threadedly engaged with the plurality of threaded holes, respectively. The length of the protruding portion of the level adjustment screw 21 protruding from the lower surface of the base 18 and contacting the upper surface of the base plate 17 can be adjusted. Thus, the level of the base 18 can be adjusted so that the rotation center line L2 of the rotating ring 14 is at the same level with respect to the rotation center line L1 of the rotating shaft 2 of the generator 1.

[0029] The position adjustment mechanism has: a front side ( Figure 3 ) and along the front-to-back direction ( Figure 3 A plurality of (in the present embodiment, two) first threaded holes extending therethrough in the vertical direction; a plurality of (in the present embodiment, two) front side push screws 22A respectively threadedly engaged with the plurality of first threaded holes; a rear side ( Figure 3 and a plurality of (in the present embodiment, two) rear side push screws 22B respectively threadedly connected with the plurality of second threaded holes.

[0030] In addition, the position adjustment mechanism includes: a right side ( Figure 3 on the right side) and along the left-right direction ( Figure 3A plurality of (in the present embodiment, two) third threaded holes extending through the frame 19 of the base plate 17 in the left-right direction (in the left-right direction); a plurality of (in the present embodiment, two) right-side push screws 22C respectively threadedly coupled to the plurality of third threaded holes; a plurality of (in the present embodiment, two) fourth threaded holes formed on the right side of the frame portion 19 of the base plate 17 and extending through the frame 19 in the left-right direction; a plurality of (in the present embodiment, two) fifth threaded holes respectively corresponding to the plurality of fourth threaded holes and formed on the right side of the base 18; and a plurality of (in the present embodiment, two) right-side pull screws 23 threadedly coupled to both the fourth threaded holes and the fifth threaded holes. In addition, the reason for providing the right-side pull screws 23 instead of the left-side push screws is to avoid interference with the stator frame 3 of the generator 1 (refer to Figure 2 ).

[0031] Then, the push screw 22A protrudes from the frame portion 19 of the base plate 17 to push the front surface of the base 18, or the push screw 22B protrudes from the frame portion 19 of the base plate 17 to push the rear surface of the base 18, or the push screw 22C protrudes from the frame portion 19 of the base plate 17 to push the right surface of the base 18, or the pull screw 23 pulls the right side of the base 18. Thus, the position of the base 18 can be adjusted so that the rotation center line L2 of the rotating ring 14 is parallel to the rotation center line L1 of the rotating shaft 2 of the generator 1.

[0032] The support body 12 further includes: a frame 24 disposed on the upper side of the base 18 and supporting the ring stage 13; a moving mechanism 25A that moves the frame 24 in the front-rear direction relative to the base 18; and a moving mechanism 25B that moves the ring stage 13 in the left-right direction relative to the frame 24.

[0033] A plurality of rows (three rows in the present embodiment) of protrusions 26 extending in the front-to-back direction are formed on the upper side of the base 18, and a plurality of rows (three rows in the present embodiment) of grooves 27 corresponding to the plurality of rows of protrusions 26 are formed on the lower side of the seat frame 24. Thus, the seat frame 24 can move in the front-to-back direction relative to the base 18. The moving mechanism 25A includes a ball screw 28A extending in the front-to-back direction and a moving motor 29A that rotates the ball screw 28A. The ball screw 28A is composed of a threaded shaft and a nut threadedly coupled to the threaded shaft via a plurality of balls, and the nut is connected to the seat frame 24. Then, as the ball screw 28A rotates, the seat frame 24 moves in the front-to-back direction. As a result, the ring stage 13 moves in the front-to-back direction (in other words, in the horizontal direction orthogonal to the rotation center line L2 of the rotating ring 14).

[0034] The seat frame 24 is provided with a plurality of (three in the present embodiment) rails 30 extending in the left-right direction and a plurality of (three in the present embodiment) sliders 31 respectively movable along the plurality of rails 30, and the plurality of sliders 31 are connected to the ring stage 13. Thus, the ring stage 13 can move in the left-right direction relative to the seat frame 24. The moving mechanism 25B has a ball screw 28B extending in the left-right direction and a motor 29B that rotates the ball screw 28B. The ball screw 28B is composed of a threaded shaft and a nut threadedly coupled to the threaded shaft via a plurality of balls, and the nut is connected to the ring stage 13. Then, as the ball screw 28B rotates, the ring stage 13 moves in the left-right direction (in other words, in the horizontal direction parallel to the rotation center line L2 of the rotating ring 14).

[0035] The rotating ring 14 is rotatably supported by a plurality of (eight in this embodiment) bearings 32 that are separated and arranged in the circumferential direction of the ring stage 13. The ring motor 15 rotates the rotating ring 14 via a gear mechanism not shown. A tool holder 33 capable of loading and unloading a tool 16 is provided on the rotating ring 14. The tool holder 33 can adjust the position of the tool 16 in the radial direction of the rotating ring 14. The tool 16 is, for example, a cutting tool, a grinding tool, or a polishing tool, and performs correction processing on the surface of the collector ring 4A or 4B.

[0036] Here, as the biggest feature of this embodiment, the ring stage 13 and the rotating ring 14 are structures that can be divided into a lower part and an upper part, respectively. In detail, the ring stage 13 is a structure that can be divided into a lower dividing stage 34A and an upper dividing stage 34B along a dividing line inclined relative to the horizontal direction. The lower dividing stage 34A is connected to the above-mentioned multiple sliders and nuts. The upper dividing stage 34B is connected to the lower dividing stage 34A using a first connecting screw not shown. The rotating ring 14 is a structure that can be divided into a lower dividing ring 35A and an upper dividing ring 35B along the same dividing line as the ring stage 13. The above-mentioned tool holder 33 is provided on the upper dividing ring 35B. The upper dividing ring 35B is connected to the lower dividing ring 35A using a second connecting screw not shown.

[0037] Next, the operation and effects of this embodiment will be described.

[0038] The correction processing device 11 directly performs correction processing on the collector rings 4A and 4B while the rotating shaft 2 of the generator 1 is in the installed state. In the preparation stage, the support body 12 is set and fixed to the floor 10. Then, the ring base 13 and the rotating ring 14 are assembled in such a manner that the positions of the ring base 13 and the rotating ring 14 are aligned with the positions of the collector ring 4A. Then, the horizontality and position of the rotation center line L2 of the rotating ring 14 are adjusted by adjusting the horizontality and position of the machine base 18 constituting the support body 12. Then, the rotating ring 14 is rotated to perform correction processing on the collector ring 4A.

[0039] If the correction processing of the collector ring 4A is completed, the rotation of the rotating ring 14 is stopped by using a known stop mechanism so that the dividing line of the rotating ring 14 and the dividing line of the ring stage 13 are aligned. Then, the lower dividing table 34A and the dividing ring 35A are connected using a first connecting fixture not shown in the figure, and the upper dividing table 34B and the dividing ring 35B are connected using a second connecting fixture not shown in the figure. Then, the first and second connecting screws are removed to separate the dividing table 34A and the dividing table 34B, and the dividing ring 35A and the dividing ring 35B are separated. Then, after the upper dividing table 34B and the dividing ring 35B are lifted, the lower dividing table 34A and the dividing ring 35A are moved and aligned with the position of the collector ring 4B.

[0040] At this time, in Figure 4 and Figure 5 As shown, when the outer diameter of the fan 5 is smaller than the inner diameter of the split ring 35A on the lower side, it is sufficient to move the split table 34A and the split ring 35A on the lower side only to the left. Since the split table 34B and the split ring 35B on the upper side are separated, interference between the split ring 35B and the tool holder 33 and the fan 5 can be avoided. On the other hand, when the outer diameter of the fan 5 is slightly larger than the inner diameter of the split ring 35A on the lower side, it is sufficient to move the split table 34A and the split ring 35A on the lower side in the order of the front side, the left side, and the rear side. Since the split line of the ring table 13 and the rotating ring 14 is inclined relative to the horizontal direction, it is easy to avoid interference between the split table 34A and the split ring 35A and the collector ring 4A.

[0041] If the positions of the lower split table 34A and split ring 35A are aligned with the position of the collector ring 4B, the upper split table 34B and split ring 35B are suspended and lowered, and the split table 34A and the split table 34B are connected using the first connecting screw, and the split ring 35A and the split ring 35B are connected using the second connecting screw. Then, the first and second connecting clamps are removed, the lower split table 34A and the split ring 35A are separated, and the upper split table 34B and the split ring 35B are separated. Then, the rotating ring 14 is rotated to perform correction processing on the collector ring 4B.

[0042] As described above, in the present embodiment, even when there is a fan 5 having a larger diameter than the slip rings 4A and 4B, the slip rings 4A and 4B can be easily corrected.

[0043] In addition, in the above-mentioned embodiment, the support body 12 is described as having a level adjustment mechanism for adjusting the level of the base 18, but the present invention is not limited thereto, and a lifting mechanism for raising the level of the base 18 may also be installed. Figure 6 Such a modified example will be described. Figure 6 1 is a front view showing the structure of the correction processing device of this modification. In this modification, the same reference numerals are given to the same parts as those of the above-mentioned embodiment, and the description thereof is omitted as appropriate.

[0044] The lifting mechanism of this modified example has a plurality of (nine in this modified example) base lifting platforms 41, a plurality of (six in this modified example) screw lifting platforms 42, and a plurality of (four in this modified example) clamping member lifting platforms 43. The nine base lifting platforms 41 are installed between the upper surface of the base plate 17 and the lower surface of the base 18 and at positions corresponding to the nine level adjustment screws 21. The four screw lifting platforms 42 are installed on the upper side of the frame 19 of the base plate 17 and at positions corresponding to the two front push screws 22A and the two rear push screws 22B. The two screw lifting platforms 42 are installed on the upper side of the frame 19 of the base plate 17 and at positions corresponding to the two sets of right push screws 22C and the right pull screw 23. A threaded hole for threading the front push screw 22A, the rear push screw 22B, the right push screw 22C, or the right pull screw 23 is formed in each screw lifting platform 42. Four clamp raising stages 43 are installed on the upper side of the frame portion 19 of the base plate 17 at positions corresponding to the clamps 20 .

[0045] According to this modification, by changing the heights of the base raising platform 41 , the screw raising platform 42 , and the clamp raising platform 43 , it is possible to cope with various heights of the rotating shaft 2 .

[0046] In the above embodiment, the correction processing device 11 performs correction processing on the surface of the slip rings 4A and 4B (cylindrical processing objects), but the present invention is not limited thereto. For example, the surface of the rotating shaft 2 (cylindrical processing object) may also be corrected.

Claims

1. A correction processing device for performing correction processing while keeping the rotating shaft of a generator installed, characterized in that: have: A support body, which is placed on and fixed to the floor; A ring platform, which is supported by the support body; A rotating ring rotatably supported by the ring table and arranged on the outer peripheral side of the cylindrical or columnar object to be processed; a ring motor that rotates the rotating ring; and a tool mounted on the rotating ring and performing correction processing on the object to be processed, The above-mentioned ring stage is a structure that can be divided into a lower dividing stage and an upper dividing stage. The rotating ring is structured to be split into a lower split ring and an upper split ring. The support body has: A base plate, which is disposed on the floor and fixed by using a plurality of fixing members; A base, which is arranged on the upper side of the base plate; A seat frame, which is arranged on the upper side of the base and supports the ring platform; A first moving mechanism that moves the ring stage in a first horizontal direction orthogonal to a rotation center line of the rotating ring; as well as a second moving mechanism, which moves the ring stage in a second horizontal direction parallel to the rotation center line of the rotating ring; The seat frame is movable in the first horizontal direction relative to the base, and the ring stage is movable in the second horizontal direction relative to the seat frame.

2. The correction processing device according to claim 1, characterized in that: The ring platform is structured to be split into the lower split platform and the upper split platform along a split line inclined relative to the horizontal direction. The rotating ring is structured to be split into the lower split ring and the upper split ring along a split line inclined with respect to a horizontal direction.

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