CN113008114B

CN113008114B - Hydro-generator stator circle measuring frame

Info

Publication number: CN113008114B
Application number: CN202110099969.9A
Authority: CN
Inventors: 李仁江; 黄均; 唐孝鸿; 杨槐; 刘鹏
Original assignee: Hunan Water Conservancy Investment Local Power Co ltd
Current assignee: Hunan Water Conservancy Investment Local Power Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2022-06-21
Anticipated expiration: 2041-01-25
Also published as: CN113008114A

Abstract

The application relates to a hydro-generator stator circle measuring frame, which belongs to the field of hydropower station generator installation and comprises an installation component sleeved on a main shaft and a supporting part for supporting the installation component, wherein the installation component comprises two half rings which are sleeved and coaxial with the main shaft, and the two half rings form a whole ring; the mounting assembly is provided with a measuring assembly, the measuring assembly comprises a hinge seat, and the hinge seat slides on the mounting assembly along the axis of the main shaft; a support rod is hinged to the hinge seat, one end, far away from the hinge seat, of the support rod is connected with a measuring rod in a sliding mode, the length direction of the measuring rod is the same as that of the support rod, and one end, close to the hinge seat, of the measuring rod is used for being abutted to the outer peripheral wall of the stator; the end, located at the hinge seat and far away from the measuring rod, of the support rod is hinged with a connecting rod, and a guide assembly for limiting the moving track of the connecting rod is arranged on the hinge seat; be provided with the pointer on the articulated seat, the vertical lateral wall of bracing piece is equipped with the second scale mark. The application has the effects of convenient operation and efficiency improvement.

Description

Hydro-generator stator circle measuring frame

Technical Field

The application relates to the field of hydropower station generator installation, in particular to a circle measuring frame for a stator of a hydraulic generator.

Background

In the construction of hydroelectric power stations, it is currently necessary to transport the various parts of the hydro-generator to the site and assemble them. When the hydraulic generator is installed, a stator of the generator needs to be sleeved on a main shaft of the generator, and the stator and the main shaft need to be concentrically arranged with high precision, so that a circle measuring frame and a micrometer are generally used for measurement at present.

In the correlation technique, the main shaft is vertical, and the circle measuring frame is installed on the main shaft, and then the stator is placed on the circle measuring frame, and the circle measuring frame is measured by using the micrometer.

Aiming at the related technologies, the inventor thinks that the defects of inconvenient operation and low efficiency exist in the measurement by using a micrometer after a circle measuring frame is installed.

Disclosure of Invention

In order to raise the efficiency, this application provides a hydraulic generator stator circle measuring frame.

The application provides a pair of hydraulic generator stator circle measuring frame adopts following technical scheme:

a hydro-generator stator circle measuring frame comprises a mounting assembly sleeved on a main shaft and a supporting portion used for supporting the mounting assembly, wherein the mounting assembly comprises two half rings which are sleeved and coaxial with the main shaft, and the two half rings form a whole ring; the measuring assembly is arranged on the mounting assembly and comprises a hinge seat, and the hinge seat slides on the mounting assembly along the axis of the main shaft; a support rod is hinged to the hinge seat, one end, far away from the hinge seat, of the support rod is connected with a measuring rod in a sliding mode, the length direction of the measuring rod is the same as that of the support rod, and one end, close to the hinge seat, of the measuring rod is used for being abutted to the outer peripheral wall of the stator; the end, away from the measuring rod, of the hinge seat is hinged with a connecting rod, the hinge seat and a hinge shaft of the supporting rod are located between the connecting rod and the measuring rod, the stator is abutted against the upper surface of the connecting rod in the moving process, and a guide assembly for limiting the moving track of the connecting rod is arranged on the hinge seat; be provided with the pointer on the articulated seat, the vertical lateral wall of bracing piece is equipped with the second scale mark, the pointer points to the second scale mark.

Through adopting above-mentioned technical scheme, establish the main shaft with two semi-ring concatenation and cover, support the installation component through the supporting part. The stator is established to top-down cover on to the main shaft, and the lower surface contact connecting rod of stator, connecting rod descend along certain orbit under the effect of direction subassembly, and the bracing piece is pressed downwards to the connecting rod, and the bracing piece overturns along articulated seat gradually. When the stator butt when installing the subassembly on, the bracing piece is the horizontality, and the bracing piece drives the same upset of measuring stick, the periphery wall of the one end butt stator of measuring stick. And the hinge seat is rotated and drives the support rod and the measuring rod to rotate along the axis of the main shaft. Because the mounting assembly is coaxial with the main shaft, when the hinged seat is rotated, whether the stator is coaxial with the main shaft or not is determined according to the relative position of the measuring rod and the supporting rod. The in-process of rotating articulated seat, the position of connecting rod can be along with the lower surface high removal of stator, and the connecting rod drives the bracing piece and produces the upset along the axis of articulated seat, observes the pointer and learns whether the lower surface of stator is level with the position of second scale mark this moment. The bracing piece can overturn automatically and be the level when installing the stator, rotates articulated seat can simultaneous measurement stator the level with whether coaxial, convenient operation is simple, improves work efficiency.

Optionally, the guide assembly includes a vertical plate and a sliding rod, and the vertical plate is perpendicular to the axis of the hinge seat; a track groove penetrates through the vertical plate, the track groove inclines to one side close to the main shaft from top to bottom, and the sliding rod is arranged on the connecting rod and is connected in the track groove in a sliding manner; when the connecting rod is positioned at the bottom end of the track groove, the supporting rod is horizontally arranged.

Through adopting above-mentioned technical scheme, when the stator descends and the butt connecting rod, the slide bar of connecting rod slides in the orbit groove of riser, and the slide bar drives the connecting rod and moves along the oblique below of orbit groove direction, and the connecting rod drives one side that the bracing piece is located articulated seat and is close to the main shaft and descends to articulated seat drives the measuring stick and rises as the fulcrum, leads the connecting rod through riser, orbit groove and slide bar, simple structure convenient operation and be difficult to damage.

Optionally, the support rod includes a sleeve rod and an inner rod, one end of the sleeve rod is hinged to the hinge seat, the inner rod is slidably connected to one end of the sleeve rod away from the hinge seat, and the measuring rod is connected to the inner rod; adjusting bolts penetrate through the outer side wall of the sleeve rod, and a plurality of threaded holes for connecting the adjusting bolts are formed in the inner rod.

Through adopting above-mentioned technical scheme, according to the diameter pulling interior pole of stator, after interior pole pulling assigned position, wear to establish adjusting bolt on the loop bar and with the screw hole threaded connection who corresponds on the interior pole with the length that this fixed interior pole extended the loop bar, adjust the position that the measuring stick is apart from the main shaft promptly. The diameter of the stator is adjusted, and the application range is improved.

Optionally, one section of the measuring rod, which is far away from the hinged seat, is provided with a compression spring, one end of the compression spring is connected with the inner rod, and the other end of the compression spring is connected with one end of the measuring rod, which is far away from the hinged seat.

Through adopting above-mentioned technical scheme, under compression spring's natural action, compression spring orders about the measuring stick butt all the time on the periphery wall of stator, and the distance of movement between artifical observation measuring stick and the interior pole during the measurement. Can automatic butt to the periphery wall of stator under compression spring's effect after the measuring stick removes, make things convenient for manual operation, improve work efficiency.

Optionally, the two half rings are hinged to each other, and a first connecting assembly for fixing the two half rings is arranged on one side of each half ring away from the hinge.

Through adopting above-mentioned technical scheme, locate the main shaft with the semi-ring cover that opens and shuts, upset two semicircles becomes whole ring to it is fixed with two semicircles through first coupling assembling. Conveniently install first connecting elements on the main shaft, convenient operation improves work efficiency.

Optionally, the first connecting assembly includes a first fixing block, a second fixing block, a fixing bolt, and a fixing nut; the first fixing block and the second fixing block are respectively connected with the two half rings, the fixing bolt penetrates through the first fixing block and the second fixing block in sequence, and the fixing nut is in threaded connection with one end, penetrating through the second fixing block, of the fixing bolt.

Through adopting above-mentioned technical scheme, with two half ring closure backs, pass behind first fixed block and the second fixed block with fixing bolt with fixation nut and fixing bolt threaded connection, fix two closed loops, fixing bolt, fixation nut are the common standard component in market, purchase convenience and with low costs.

Optionally, the supporting portion includes a plurality of supporting plates sleeved on the main shaft, the supporting plates include two half plates matched with each other, and upper surfaces of the two half plates of the top supporting plate are abutted to lower surfaces of the two half rings; the lower surfaces of the two half plates of the bottom end supporting plate are abutted with the ground; and a screw rod parallel to the main shaft is arranged between the two vertically adjacent half plates, one end of the screw rod is rotationally connected with one half plate, and the screw rod is penetrated and connected with the other half plate in a threaded manner.

By adopting the technical scheme, the screw rod is rotated, the screw rod is in threaded connection with one half plate of the accompanying half plate, and the screw rod pushes the two vertically adjacent half plates to be away from or close to each other. After the two vertically adjacent half plates are adjusted to a proper distance, each half plate is sleeved on the main shaft to form a plurality of complete supporting plates. The mounting assembly consisting of the two half rings is placed on the uppermost supporting plate. The screw rod is highly rotated according to the demand of difference and the height of adjusting supporting part and installation component improves adaptability.

Optionally, a guide rod parallel to the screw rod is arranged between two vertically adjacent half plates, one end of the guide rod is connected with one half plate, and the guide rod penetrates through and is slidably connected with the other half plate.

Through adopting above-mentioned technical scheme, through the setting of guide arm, the direction of movement between the two halves boards adjacent vertically is led, makes two halves boards adjacent vertically only can vertical removal. The height of the screw can be adjusted by rotating the screw after the supporting part and the mounting assembly are mounted.

Optionally, the half plates of the supporting plates are provided with yielding holes, and when the supporting plates are mutually attached, the screw rod and the guide rod are located in the yielding holes.

Through adopting above-mentioned technical scheme, when need not using the supporting part, with each half board back of moving away, rotate the screw rod and will half the board be close to each other, during a plurality of screw rods and the guide arm wear to establish the hole of stepping down of adjacent half board respectively, reduce area.

Optionally, be provided with second coupling assembling on two half boards of backup pad, second coupling assembling includes two sockets and bolt, two the socket is connected with two half boards respectively, the bolt runs through two sockets simultaneously.

Through adopting above-mentioned technical scheme, splice into a backup pad with half board after, pass the bolt, the socket of two backup pads is passed to the bolt, connects two halves boards. The possibility of bending between the two half plates is reduced through the bolts, and the structural strength is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the main shaft is provided with a mounting component, the mounting component comprises two semi-rings, and a measuring component is arranged on the mounting component; move the in-process of articulated seat, the position of connecting rod can be along with the lower surface high removal of stator, and the connecting rod drives the bracing piece and produces the upset along the axis of articulated seat, observes this moment and learns whether level with the lower surface of rotor with the position of pointer and second scale mark. When the stator is installed, the supporting rod can automatically turn over to be horizontal, the rotating hinge seat can measure the level and the coaxiality of the stator at the same time, the operation is convenient and simple, and the working efficiency is improved;

2. the guide assembly comprises a vertical plate and a sliding rod; when the stator descends and abuts against the connecting rod, the sliding rod of the connecting rod slides in the track groove of the vertical plate, the sliding rod drives the connecting rod to move along the track groove to the inclined lower side, the connecting rod drives the supporting rod to descend at one side of the hinge seat close to the main shaft, the hinge seat is used as a fulcrum to drive the measuring rod to ascend, and the connecting rod is guided through the vertical plate, the track groove and the sliding rod, so that the structure is simple, the operation is convenient, and the damage is not easy;

3. the support rod comprises a loop bar and an inner rod; the inner rod is pulled according to the diameter of the stator, after the inner rod is pulled to an appointed position, the sleeve rod is penetrated with an adjusting bolt and is in threaded connection with a corresponding threaded hole in the inner rod, the length of the sleeve rod extending out of the inner rod is fixed, and the position of the measuring rod away from the main shaft is adjusted. The diameter of the stator is adjusted, and the application range is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of a hydro-generator stator circle measuring frame according to an embodiment of the present application;

FIG. 2 is a schematic view of a portion of the measurement assembly shown in FIG. 1;

fig. 3 is a schematic view of another state of the support part shown in fig. 1.

Description of reference numerals: 1. a main shaft; 2. a stator; 3. a half ring; 4. a support portion; 41. a first support plate; 42. a second support plate; 43. a third support plate; 44. a half plate; 45. a first screw; 46. a first guide bar; 47. a second screw; 48. a second guide bar; 49. a hole of abdication; 5. a measurement assembly; 51. a hinged seat; 52. a support bar; 521. a loop bar; 522. an inner rod; 53. adjusting the bolt; 54. a threaded hole; 55. a fixing plate; 56. a measuring rod; 57. a baffle plate; 58. a compression spring; 6. a first connection assembly; 61. a first fixed block; 62. a second fixed block; 63. fixing the bolt; 64. fixing a nut; 7. a chute; 8. a connecting rod; 9. a guide assembly; 91. a vertical plate; 92. a track groove; 93. a slide bar; 10. a second scale mark; 11. a pointer; 12. a first scale mark; 13. a second connection assembly; 131. a socket; 132. and (4) a bolt.

Detailed Description

The present application is described in further detail below with reference to all of the figures.

The embodiment of the application discloses circle frame is surveyed to hydraulic generator stator, refer to fig. 1 and 2, including installation component and supporting part 4, supporting part 4 is used for supporting the installation component, and the installation component includes two mutual articulated semi-rings 3, and main shaft 1 is established to two coaxial covers of semi-ring 3, and one side that the articulated shaft was kept away from to two semi-rings 3 periphery walls is provided with first connecting element 6. The mounting assembly is provided with a measuring assembly 5, and the stator 2 is measured through the measuring assembly 5.

The first connecting assembly 6 includes a first fixing block 61 and a second fixing block 62, the first fixing block 61 and the second fixing block 62 are respectively welded to the outer peripheral walls of the two half rings 3, and the first fixing block 61 and the second fixing block 62 are disposed at one side away from the hinge axis of the two half rings 3. First fixed block 61 and the setting of laminating each other of second fixed block 62, the one side that second fixed block 62 was kept away from to first fixed block 61 is worn to be equipped with fixing bolt 63, and fixing bolt 63 runs through first fixed block 61 and second fixed block 62. One end of the fixing bolt 63 penetrating through the second fixing block 62 is threadedly connected with a fixing nut 64. The fixing bolts 63 are inserted and the fixing nuts 64 are screwed with the fixing bolts 63 to fix the two half rings 3.

The outer peripheral wall of the two half rings 3 is provided with a sliding groove 7, the sliding groove 7 is arranged along the radian direction of the outer peripheral wall of the half rings 3, the sliding groove 7 is a T-shaped groove, and the sliding grooves 7 of the two half rings 3 are communicated with each other. The measuring assembly 5 comprises a hinge seat 51, the hinge seat 51 being slidably connected in the sliding grooves 7 of the two half-rings 3. The hinge base 51 is pushed, and the hinge base 51 slides along the axis of the main shaft 1.

The one end of articulated seat 51 far away from main shaft 1 has seted up the groove of stepping down, and articulated seat 51 is provided with bracing piece 52 in the groove of stepping down, and bracing piece 52 includes loop bar 521 and interior pole 522, and the one end of loop bar 521 is articulated with articulated seat 51. The inner rod 522 is inserted through and slidably connected to an end of the sleeve rod 521 far away from the hinge base 51. The cross sections of the loop bar 521 and the inner bar 522 are rectangular, an adjusting bolt 53 is arranged on one vertical outer side wall of the loop bar 521 in a penetrating mode, a threaded hole 54 for the adjusting bolt 53 to be in threaded connection is formed in the side wall, close to the adjusting bolt 53, of the inner bar 522, and the threaded hole 54 is provided with a plurality of holes along the length direction of the inner bar 522. After the inner rod 522 is pulled and the inner rod 522 is slid to a proper position, the adjusting bolt 53 is inserted and connected with the corresponding threaded hole 54, and the relative position of the loop bar 521 and the inner rod 522 is fixed.

Between the escape 151 of the hinge seat 51 and the hinge shaft of the lever 521. The end of the link 8 remote from the hinge base 51 is disposed toward the upper side. The stator 2 is sleeved on the spindle 1 and moves downwards, the stator 2 abuts against the connecting rod 8, the connecting rod 8 moves downwards and pushes one end, close to the hinge seat 51, of the sleeve rod 521 to move downwards, the sleeve rod 521 overturns by taking a hinge shaft of the hinge seat 51 as a fulcrum, and the inner rod 522 overturns upwards.

The upper surface of articulated seat 51 is provided with direction subassembly 9, and direction subassembly 9 includes riser 91, and riser 91 welds in the upper surface of articulated seat 51. The vertical plate 91 is perpendicular to the axis of the hinge shaft. A track groove 92 vertically penetrates through one side of the vertical plate 91 far away from the connecting rod 8. The track groove 92 inclines towards one side close to the main shaft 1 from top to bottom, a cylindrical sliding rod 93 is vertically welded at one end, close to the vertical plate 91, of the connecting rod 8, and the sliding rod 93 is connected in the track groove 92 of the vertical plate 91 in a sliding mode. When the connecting rod 8 is located at the bottom end of the track groove 92, the supporting rod 52 is horizontally disposed and the upper surface of the connecting rod 8 is flush with the upper surface of the half ring 3. Two groups of guide assemblies 9 are symmetrically arranged on the hinge seat 51. The stator 2 pushes the connecting rod 8 downwards, and the sliding rod 93 of the connecting rod 8 slides in the track groove 92 of the vertical plate 91, so that the loop bar 521 and the inner bar 522 are overturned more stably.

One end of the loop bar 521, which is close to the hinge base 51 and is vertical to the side wall, is provided with a second graduation mark 10, and the second graduation mark 10 is provided in plurality along the circumference of the hinge shaft of the hinge base 51. A horizontally arranged pointer 11 is welded on the hinge base 51, and the pointer 11 points to the second scale mark 10. When the hinge base 51 is pushed, the hinge base 51 drives the connecting rod 8 and the supporting rod 52 to rotate along the axis of the main shaft 1. The upper surface of the link 8 always abuts against the lower surface of the stator 2, and when the lower surface of the stator 2 is inclined, the loop bar 521 and the inner bar 522 are turned over. The pointer 11 and the second scale mark 10 are convenient for manual observation.

The fixing plate 55 is welded at one end of the inner rod 522 far away from the loop bar 521, and the cylindrical measuring rod 56 vertically penetrates through one side of the fixing plate 55 far away from the inner rod 522. The length direction of the measuring rod 56 is parallel to the length direction of the inner rod 522, and a disc-shaped baffle 57 is coaxially welded to one end of the measuring rod 56 away from the main shaft 1. One end of the measuring rod 56 near the hinge base 51 is adapted to abut against the outer circumferential wall of the stator 2. The measuring rod 56 is coaxially sleeved with a compression spring 58, one end of the compression spring 58 is welded with one end of the baffle plate 57 close to the fixing plate 55, and the other end of the compression spring is welded with one end of the fixing plate 55 facing the baffle plate 57. The outer peripheral wall of the measuring rod 56 is provided with a plurality of first graduation marks 12 along the length direction thereof. When the inner rod 522 is horizontal, the hinged base 51 is pushed, the hinged base 51 drives the measuring rod 56 to rotate along the axis of the spindle 1 through the supporting rod 52, the measuring rod 56 is abutted to the outer peripheral wall of the stator 2, and whether the outer peripheral wall of the stator 2 is concentrically arranged with the spindle 1 is measured by observing the positions of the first scale marks 12 and the fixing plate 55.

Referring to fig. 1 and 3, the supporting portion 4 includes a plurality of supporting plates, and in this embodiment, three supporting plates, namely a first supporting plate 41, a second supporting plate 42, and a third supporting plate 43, are respectively disposed from top to bottom. The support plate comprises two cooperating half-plates 44, so that six half-plates 44 are provided in this embodiment. The lower surface of the half plate 44 of the first support plate 41 is vertically welded with a first screw 45 and a second guide rod 48. A second screw 47 and a second guide bar 48 are welded to the upper surface of the half plate 44 of the third support plate 43. The first screw rod 45 and the second screw rod 47 are both inserted through and threaded to the half plate 44 of the second support plate 42, and the first guide rod 46 and the second guide rod 48 are both inserted through and slidably connected to the half plate 44 of the second support plate 42. The half-plate 44 of the first supporting plate 41 and the half-plate 44 of the third supporting plate 43 are both provided with abdicating holes 49. The second screw 47 and the second guide rod 48 pass through and are slidably connected to the offset hole 49 of the plate in the first support plate 41. The first screw 45 and the first guide rod 46 pass through and are slidably connected to the plate material offset hole 49 of the third support plate 43. The upper surfaces of the two half plates 44 in the first support plate 41 abut the lower surfaces of the two half rings 3. The lower surfaces of the two half plates 44 of the third support plate 43 abut against the ground. The lengths of the first screw 45, the second screw 47, the first guide rod 46 and the second guide rod 48 are all the same as the length direction of the main shaft 1.

The first support plate 41, the second support plate 42 and the third support plate 43 are all provided with the second connecting assembly 13. The second connecting assembly 13 includes two sockets 131, the two sockets 131 are respectively welded to the vertical and coplanar sidewalls of the two half plates 44, a horizontally disposed plug 132 penetrates through the two sockets 131, and the cross section of the plug 132 is rectangular. The second connecting members 13 are symmetrically disposed on the first support plate 41, the second support plate 42, and the third support plate 43, respectively. The half plates 44 are connected to the sockets 131, and the pins 132 are inserted to complete the fixing.

The implementation principle of the hydro-generator stator circle measuring frame is as follows: the first screw 45 and the second screw 47 are rotated to adjust the distance between the first support plate 41, the second support plate 42, and the third support plate 43. After the plate is adjusted to a certain height, the main shaft 1 is sleeved with the two half rings 3, the fixing bolts 63 penetrate through the two half rings 3, the two half rings 3 are fixed by connecting the fixing nuts 64 and the fixing bolts 63, and the lower surfaces of the two half rings 3 are abutted to the upper surface of the plate in the first supporting plate 41. The mounting assembly is now supported by the support 4. The inner rod 522 is pulled according to the diameter of the stator 2, the inner rod 522 is pulled to a proper position, then the adjusting bolt 53 is arranged in a penetrating mode, and the adjusting bolt 53 is in threaded connection with the corresponding threaded hole 54 in the inner rod 522.

The stator 2 is sleeved on the main shaft 1, the stator 2 is lowered, the lower surface of the stator 2 is supported by the connecting rod 8, the sliding rod 93 of the connecting rod 8 slides in the track groove 92 of the vertical plate 91, the sliding rod 93 drives the connecting rod 8 to move obliquely downwards along the track groove 92, and the connecting rod 8 drives the sleeve rod 521 to overturn along the hinge shaft of the hinge seat 51. The loop bar 521 drives the inner rod 522 and the measuring rod 56 to turn over, when the stator 2 abuts against the upper surface of the half ring 3, the sliding rod 93 is located at the bottom end of the track groove 92 in the vertical plate 91, and the measuring rod 56 is horizontally arranged at the moment. The measuring rod 56 always abuts against the outer peripheral wall of the stator 2 under the action of the spring. The hinged base 51 is pushed, the hinged base 51 drives the measuring rod 56 to rotate along the axis of the main shaft 1, and whether the stator 2 is coaxial with the main shaft 1 or not is known by observing the positions of the first scale mark 12 and the fixed plate 55 on the measuring rod 56. According to the positions of the observation pointer 11 and the second scale mark 10, whether the lower surface of the stator 2 is horizontally arranged or not is conveniently observed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a circle frame is surveyed to hydraulic generator stator which characterized in that: the mounting device comprises a mounting component sleeved on a main shaft (1) and a supporting part (4) for supporting the mounting component, wherein the mounting component comprises two half rings (3) which are sleeved and coaxial with the main shaft (1), and the two half rings (3) form a whole ring; the measuring assembly (5) is arranged on the mounting assembly, the measuring assembly (5) comprises a hinged seat (51), and the hinged seat (51) slides on the mounting assembly along the axis of the main shaft (1); a supporting rod (52) is hinged to the hinged seat (51), one end, far away from the hinged seat (51), of the supporting rod (52) is connected with a measuring rod (56) in a sliding mode, the length direction of the measuring rod is the same as that of the supporting rod (52), and one end, close to the hinged seat (51), of the measuring rod (56) is used for being abutted to the outer peripheral wall of the stator (2); the supporting rod (52) is hinged to a connecting rod (8) at one end, away from the measuring rod (56), of the hinge seat (51), a hinge shaft of the hinge seat (51) and the supporting rod (52) is located between the connecting rod (8) and the measuring rod (56), the stator (2) is abutted to the upper surface of the connecting rod (8) in the moving process, and a guide assembly (9) for limiting the moving track of the connecting rod (8) is arranged on the hinge seat (51); be provided with pointer (11) on articulated seat (51), the vertical lateral wall of bracing piece (52) is equipped with second scale mark (10), pointer (11) point to second scale mark (10).

2. The hydro-generator stator circle measuring frame according to claim 1, characterized in that: the guide assembly (9) comprises a vertical plate (91) and a sliding rod (93), and the vertical plate (91) is perpendicular to the axis of the hinge seat (51); a track groove (92) penetrates through the vertical plate (91), the track groove (92) inclines to one side close to the main shaft (1) from top to bottom, and the sliding rod (93) is arranged on the connecting rod (8) and is connected in the track groove (92) in a sliding manner; when the connecting rod (8) is positioned at the bottom end of the track groove (92), the supporting rod (52) is horizontally arranged.

3. The hydro-generator stator circle measuring frame according to claim 1, characterized in that: the support rod (52) comprises a sleeve rod (521) and an inner rod (522), one end of the sleeve rod (521) is hinged to the hinge base (51), the inner rod (522) is connected to one end, far away from the hinge base (51), of the sleeve rod (521) in a sliding mode, and the measuring rod (56) is connected with the inner rod (522); adjusting bolts (53) penetrate through the outer side wall of the loop bar (521), and a plurality of threaded holes (54) for connecting the adjusting bolts (53) are formed in the inner bar (522).

4. The hydro-generator stator circle measuring frame according to claim 3, characterized in that: one section of the measuring rod (56) far away from the hinged seat (51) is provided with a compression spring (58), one end of the compression spring (58) is connected with the inner rod (522), and the other end of the compression spring is connected with one end of the measuring rod (56) far away from the hinged seat (51).

5. The hydro-generator stator circle measuring frame according to claim 1, characterized in that: the two half rings (3) are mutually hinged, and one side, away from the hinged side, of each half ring (3) is provided with a first connecting component (6) for fixing the two half rings (3).

6. The hydro-generator stator circle measuring frame according to claim 5, characterized in that: the first connecting assembly (6) comprises a first fixing block (61), a second fixing block (62), a fixing bolt (63) and a fixing nut (64); the first fixing block (61) and the second fixing block (62) are respectively connected with the two semi-rings (3), the fixing bolt (63) sequentially penetrates through the first fixing block (61) and the second fixing block (62), and the fixing nut (64) is in threaded connection with one end, through which the fixing bolt (63) penetrates through the second fixing block (62).

7. The hydro-generator stator circle measuring frame according to claim 1, characterized in that: the supporting part (4) comprises a plurality of supporting plates sleeved on the main shaft (1), each supporting plate comprises two half plates (44) matched with each other, and the upper surfaces of the two half plates (44) of the supporting plate at the top end are abutted to the lower surfaces of the two half rings (3); the lower surfaces of the two half plates (44) of the bottom end supporting plate are abutted against the ground; a screw rod parallel to the main shaft (1) is arranged between the two vertically adjacent half plates (44), one end of the screw rod is rotatably connected with one half plate (44), and the screw rod penetrates through the other half plate (44) and is in threaded connection with the other half plate (44).

8. The hydro-generator stator circle measuring frame according to claim 7, characterized in that: a guide rod parallel to the screw rod is arranged between two vertically adjacent half plates (44), one end of the guide rod is connected with one half plate (44), and the guide rod penetrates through and is connected with the other half plate (44) in a sliding manner.

9. The hydro-generator stator circle measuring frame according to claim 8, characterized in that: offer hole of stepping down (49) on half board (44) of backup pad, when a plurality of backup pads were laminated each other, lead screw and guide arm were located hole of stepping down (49).

10. The hydro-generator stator circle measuring frame according to claim 7, characterized in that: be provided with second coupling assembling (13) on two half boards (44) of backup pad, second coupling assembling (13) are including two sockets (131) and bolt (132), two socket (131) are connected with two half boards (44) respectively, bolt (132) run through two sockets (131) simultaneously.