Steam turbine on-site repair equipment

Abstract

The present invention relates to the field of steam turbine maintenance technology, and more particularly to equipment for on-site steam turbine repair. The equipment comprises a sliding spindle, two main support systems, an auxiliary support system, a powertrain system, an axial feed system, a machining system, a detection system, and a control system. The sliding spindle is provided with an axially defined slide groove. This invention enables high-precision on-site repair of deformed parts of a steam turbine, shortening the repair cycle, reducing repair costs, and improving repair accuracy and labor efficiency.

Description

Technical field:

[0001] The present invention relates to the technical field of steam turbine maintenance, and in particular to on-site repair equipment for steam turbines. Background technology:

[0002] Steam turbines are widely used in national pillar industries such as petrochemicals and are a key national asset. Steam turbines operate under high temperature and high pressure for long periods of time, often experiencing problems such as cylinder deformation, misalignment of the support bearing holes at both ends, and uneven gas seal gaps, which affect the stable operation of the unit. High-precision repair of steam turbine body deformation on-site has always been a gap in the field of mechanical repair. Traditional repair methods are mostly manual, with low efficiency and poor accuracy; returning to professional manufacturers for repairs has a long cycle and high costs. Therefore, it is imperative to develop equipment that can perform high-precision repairs of deformed parts of steam turbines on-site. Summary of the invention:

[0003] The technical problem addressed by the present invention is to provide a steam turbine on-site repair system that enables high-precision on-site repair of turbine deformations, shortening the repair cycle, reducing repair costs, and improving repair accuracy and labor efficiency. This overcomes the shortcomings of existing on-site repair methods for steam turbine deformations, which are often manual and result in low efficiency and poor precision.

[0004] The technical solution adopted by the present invention is: a steam turbine on-site repair equipment, including a sliding main shaft, two main support systems, an auxiliary support system, a power assembly system, an axial feed system, a processing system, a detection system, and a control system, wherein the sliding main shaft has an axial groove;

[0005] The main support system includes a main frame and an adjustment module installed on the main frame. Two zero-clearance radial rolling bearings are embedded in the central bearing hole of the adjustment module. The adjustment module adjusts the position and the angle of the rotation center of the zero-clearance radial rolling bearing through an adjustment mechanism; the zero-clearance radial rolling bearings of the two main support systems are respectively mounted on both ends of the sliding main shaft;

[0006] The auxiliary support system includes a transition connector, the outer side of the transition connector is connected to a V-shaped bracket, the inner center hole of the transition connector is installed with a deep groove ball bearing, and the deep groove ball bearing is sleeved on the sliding main shaft;

[0007] The power assembly system includes a servo motor and a worm gear reducer connected to the servo motor. A sliding key sleeve is installed in the center hole of the worm wheel at the output end of the worm gear reducer. A sliding key is provided on the inner wall of the sliding key sleeve. The sliding key sleeve is sleeved on the sliding main shaft. The sliding key is embedded in the axial sliding groove of the sliding main shaft. When the sliding key sleeve rotates, the sliding main shaft can be driven to rotate through the sliding key. The worm gear reducer is connected to the transition connector.

[0008] The axial feed system includes a stepper motor, which is connected to a feed fixed plate. A bearing is provided at the upper end of the feed fixed plate, and a channel is provided at the lower end of the feed fixed plate. The bearing is sleeved on the output shaft of the stepper motor, and the output shaft of the stepper motor is connected to a ball screw. A ball bearing is matched and connected to the ball screw. The ball bearing is mounted on the upper part of the displacement plate, and a displacement bearing is mounted on the lower part of the displacement plate. The sliding spindle passes through the channel at the lower end of the feed fixed plate. The displacement bearing is sleeved on the sliding spindle and can drive the sliding spindle to axially displace; the lower part of the fixed plate is connected to a worm gear reducer;

[0009] The machining system includes a tool connected to a sliding spindle;

[0010] The detection system includes a laser sensor I arranged on a slip detection platform and a laser sensor II arranged on the end face of the turbine bearing box. The slip detection platform is mounted on the slip main shaft. The laser sensor I and laser sensor II are respectively connected to a control system, and the control system is connected to a terminal display.

[0011] The control system includes a servo motor controller connected to the servo motor and a stepper motor controller connected to the stepper motor.

[0012] Furthermore, the adjustment mechanism of the main support system includes a displacement adjustment frame and an angle adjustment screw. An adjustment module is arranged in the displacement adjustment frame. Slider grooves are respectively opened on the upper, lower, left and right side walls of the adjustment module. The displacement slider is installed in the slider groove and can move along the slider groove. The upper, lower, left and right side walls of the displacement adjustment frame are respectively connected to the adjustment screws. The adjustment screws are screwed into the screw holes along the side walls of the displacement adjustment frame and pressed against the displacement slider to limit the adjustment module. Angle adjustment screws are respectively installed in multiple directions of the adjustment module. The front end of the angle adjustment screw presses against the main frame. The angle of the rotation center of the zero-clearance radial rolling bearing is adjusted by adjusting the screwing of the angle adjustment screw. After the angle of the rotation center of the zero-clearance radial rolling bearing is adjusted, the adjustment module is fixed to the main frame by fastening screws.

[0013] Furthermore, a plurality of slide grooves are circumferentially arranged on both the front and back sides of the main frame of the main support system, and connecting legs are installed in the plurality of slide grooves on the front or back side of the main frame.

[0014] Furthermore, an adjustment hole is provided on the connecting leg, and the connecting screw passes through the adjustment hole and is connected to the screw hole in the slide and connects the connecting leg in the slide. The position of the connecting screw on the adjustment hole of the connecting leg is adjusted to adjust the position of the connecting leg in the slide.

[0015] Furthermore, the sliding detection platform includes a linear bearing mounted on the sliding main shaft, the linear bearing is connected to a fixed plate, the fixed plate is connected to a guide sliding key via a fastening screw, and the guide sliding key can extend into the axial sliding groove of the sliding main shaft.

[0016] Furthermore, the steam turbine on-site repair equipment also includes an anti-vibration system, which includes an anti-vibration support seat, a rolling bearing installed in the center hole of the anti-vibration support seat, an anti-vibration support seat pressure cover connected to the anti-vibration support seat and the axial position of the rolling bearing is limited by the anti-vibration support seat pressure cover, an adjustable anti-vibration support frame is connected to the anti-vibration support seat, and the anti-vibration support seat is mounted on the sliding main shaft.

[0017] Furthermore, the adjustable anti-vibration support frame is designed with an adjustment hole, and the adjustment screw passes through the adjustment hole to connect the anti-vibration support seat to the adjustable anti-vibration support frame. The position of the anti-vibration support seat on the adjustable anti-vibration support frame is adjusted by adjusting the position of the adjustment screw on the adjustment hole.

[0018] Furthermore, the processing system also includes a tool adjustment screw connected to the tool, and a plurality of connecting screw holes are provided at intervals on the sliding spindle. The tool is connected to the corresponding screw holes through the tool adjustment screw and is fastened by the tool fastening screw.

[0019] Furthermore, the control system also includes a control box, a control panel, a data transmission panel, and a power transformer. The servo motor controller and the stepper motor controller are arranged in the control box. The servo motor controller and the stepper motor controller are respectively connected to the control panel and the power transformer. The laser sensor I and the laser sensor II are respectively connected to the data transmission panel, and the data transmission panel is connected to the terminal display.

[0020] Furthermore, the deep groove ball bearing of the auxiliary support system is axially limited inside the transition connector by a retaining spring.

[0021] Furthermore, the axial feeding system also includes a manual mechanism, the ball screw is connected to the manual mechanism, and the ball screw can be driven to rotate by manually rotating the manual mechanism.

[0022] The beneficial effects of the present invention are as follows: the present invention enables on-site high-precision repair of deformed parts of a steam turbine, shortens the repair cycle, reduces repair costs, and improves repair accuracy and labor efficiency. Description of the drawings:

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2Schematic diagram of the front structure of the main support system.

[0026] Figure 3 Schematic diagram of the reverse structure of the main support system.

[0027] Figure 4 Schematic diagram of the auxiliary support system.

[0028] Figure 5 A schematic diagram of the powertrain system.

[0029] Figure 6 It is a structural diagram of the axial feed system.

[0030] Figure 7 This is a schematic diagram of the front structure of the anti-vibration system.

[0031] Figure 8 This is a schematic diagram of the reverse structure of the anti-vibration system.

[0032] Figure 9 This is a structural diagram of the slip detection platform.

[0033] Figure 10 Schematic diagram of the detection system.

[0034] Figure 11 Schematic diagram of the processing system.

[0035] Figure 12 Schematic diagram of the control system. Specific implementation method:

[0036] like Figure 1 As shown, a steam turbine on-site repair equipment includes a sliding main shaft 8, two main support systems 1, an auxiliary support system 2, a power assembly system 3, an axial feed system 4, a processing system 7, a detection system, and a control system. The sliding main shaft 8 has an axial groove;

[0037] like Figure 2 、 Figure 3 As shown, the main support system 1 includes a main frame 14, an adjustment module 11 installed on the main frame 14, two zero-clearance radial rolling bearings 12 are embedded in the central bearing hole of the adjustment module 11, and the adjustment module 11 adjusts the position and the angle of the rotation center of the zero-clearance radial rolling bearings 12 through the adjustment mechanism; the zero-clearance radial rolling bearings 12 of the two main support systems 1 are respectively mounted on both ends of the sliding main shaft 8;

[0038] like Figure 4 As shown, the auxiliary support system 2 includes a transition connector 22, the outer side of the transition connector 22 is connected to the V-shaped bracket 20, and a deep groove ball bearing 23 is installed in the center hole of the transition connector 22. The deep groove ball bearing 23 is mounted on the sliding main shaft 8;

[0039] like Figure 5 As shown, the power assembly system 3 includes a servo motor 24 and a worm gear reducer 27 connected to the servo motor 24. A sliding key sleeve 26 is installed in the center hole of the worm wheel at the output end of the worm gear reducer 27. A sliding key 25 is provided on the inner wall of the sliding key sleeve 26. The sliding key sleeve 26 is sleeved on the sliding main shaft 8. The sliding key 25 is embedded in the axial sliding groove of the sliding main shaft 8. The sliding main shaft 8 can move along the sliding key 25. When the sliding key sleeve 26 rotates, the sliding main shaft 8 can be driven to rotate through the sliding key 25. The worm gear reducer 27 is connected to the transition connector 22.

[0040] like Figure 6 As shown, the axial feed system 4 includes a stepper motor 28, which is connected to a feed fixed plate 29. A bearing 30 is provided at the upper end of the feed fixed plate 29, and a channel is provided at the lower end of the feed fixed plate 29. The bearing 30 is sleeved on the output shaft of the stepper motor 28, and the output shaft of the stepper motor 28 is connected to a ball screw 33. A ball bearing 31 is matched and connected to the ball screw 33. The ball bearing 31 is mounted on the upper part of the displacement plate 32, and a displacement bearing 35 is mounted on the lower part of the displacement plate 32. The sliding spindle 8 passes through the channel at the lower end of the feed fixed plate 29. The displacement bearing 35 is sleeved on the sliding spindle 8 and can drive the sliding spindle 8 to axially displace; the lower part of the fixed plate 29 is connected to the worm gear reducer 27;

[0041] like Figure 11 As shown, the machining system 7 includes a tool 45 connected to a sliding spindle 8;

[0042] like Figure 10 As shown, the detection system includes a laser sensor I provided on a slip detection platform 6 and a laser sensor II provided on the end face of the turbine bearing housing. The slip detection platform 6 is mounted on the slip spindle 8. The laser sensors I and II are respectively connected to a control system, which is connected to a terminal display.

[0043] like Figure 12 As shown, the control system includes a servo motor controller 51 connected to the servo motor 24 and a stepper motor controller 52 connected to the stepper motor 28 .

[0044] like Figure 2 、 Figure 3As shown, the adjustment mechanism of the main support system 1 includes a displacement adjustment frame 10 and an angle adjustment screw 9. An adjustment module 11 is arranged in the displacement adjustment frame 10. Slider grooves are respectively opened on the upper, lower, left and right side walls of the adjustment module 11. The displacement slider 16 is installed in the slider groove and can move along the slider groove. The upper, lower, left and right side walls of the displacement adjustment frame 10 are respectively connected to the adjustment screws 15. The adjustment screws 15 are screwed into the screw holes on the side walls of the displacement adjustment frame 10 and pressed against the displacement slider 16 to limit the adjustment module 11. Angle adjustment screws 9 are respectively installed in multiple directions of the adjustment module 11. The front end of the angle adjustment screw 9 is pressed against the main frame 14. The angle of the rotation center of the zero-clearance radial rolling bearing 12 is adjusted by adjusting the screwing of the angle adjustment screw 9. After adjusting the angle of the rotation center of the zero-clearance radial rolling bearing 12, the adjustment module 11 is fixed to the main frame 14 by fastening screws.

[0045] The main frame 14 of the main support system 1 has a plurality of chute grooves 17 arranged circumferentially on both the front and back sides thereof, and connecting legs 18 are installed in the plurality of chute grooves 17 on the front or back side of the main frame 14 .

[0046] The connecting leg 18 is provided with an adjustment hole, and the connecting screw 13 passes through the adjustment hole and is connected to the screw hole in the slide groove 17 to connect the connecting leg 18 to the slide groove 17. The position of the connecting leg 18 in the slide groove 17 is adjusted by adjusting the position of the connecting screw 13 on the adjustment hole of the connecting leg 18.

[0047] like Figure 9 As shown, the sliding detection platform 6 includes a linear bearing 41 mounted on the sliding main shaft 8, the linear bearing 41 is connected to a fixed plate 42, and the fixed plate 42 is connected to a guide sliding key 43 through a fastening screw 44, and the guide sliding key 43 can extend into the axial sliding groove of the sliding main shaft 8.

[0048] like Figure 7 、 Figure 8 As shown, the steam turbine on-site repair equipment also includes an anti-vibration system 5, which includes an anti-vibration support seat 36. A rolling bearing 40 is installed in the center hole of the anti-vibration support seat 36. The anti-vibration support seat pressure cover 39 is connected to the anti-vibration support seat 36 and the rolling bearing 40 is axially limited by the anti-vibration support seat pressure cover 39. The anti-vibration support seat 36 is connected to an adjustable anti-vibration support frame 37. The anti-vibration support seat 36 is mounted on the sliding main shaft 8.

[0049] The adjustable anti-vibration support frame 37 is designed with an adjustment channel, and the adjustment screw 38 passes through the adjustment channel to connect the anti-vibration support seat 36 to the adjustable anti-vibration support frame 37. The position of the anti-vibration support seat 36 on the adjustable anti-vibration support frame 37 is adjusted by adjusting the position of the adjustment screw 38 on the adjustment channel.

[0050] like Figure 11As shown, the processing system 7 also includes a tool adjustment screw 46 connected to the tool 45. A plurality of connecting screw holes are provided at intervals on the sliding spindle 8. The tool 45 is connected to the corresponding screw holes through the tool adjustment screw 46 and is fastened by the tool fastening screw 47.

[0051] like Figure 12 As shown, the control system also includes a control box 48, a control panel 49, a data transmission panel 50, and a power transformer 21. The servo motor controller 51 and the stepper motor controller 52 are arranged in the control box 48. The servo motor controller 51 and the stepper motor controller 52 are respectively connected to the control panel 49 and the power transformer 21. The laser sensor I and the laser sensor II are respectively connected to the data transmission panel 50, and the data transmission panel 50 is connected to the terminal display.

[0052] The deep groove ball bearing 23 of the auxiliary support system 2 is axially limited inside the transition connector 22 by the retaining spring 19 .

[0053] The axial feeding system 4 further includes a manual mechanism 34 , and the ball screw 33 is connected to the manual mechanism 34 . The ball screw 33 can be driven to rotate by manually rotating the manual mechanism 34 .

[0054] The working process of the steam turbine on-site repair equipment of the present invention is as follows:

[0055] 1. Assemble the two main support systems 1. First, bolt the connecting legs 18 to the turbine bearing housing as needed. Slide slots 17 at different angles are provided on both sides of the main frame 14 to accommodate the connecting legs 18 and accommodate the bolt hole distribution of commercially available bearing housings. Adjust the position of the adjustment module 11 in the four directions, vertically, horizontally, and horizontally, so that the rotation centerline of the zero-clearance radial rolling bearing 12 reaches the required operating position. After adjustment, tighten the adjustment screws 15 and move the displacement slider 16 until the adjustment screws 15 contact the displacement slider 16, thereby limiting the adjustment module 11 in the four directions. The position of the zero-clearance radial rolling bearing 12 in the four directions is now adjusted. Next, adjust the angle of the rotation centerline of the zero-clearance radial rolling bearing 12. Use the sliding spindle 8 and the laser sensor I on the sliding detection platform 6 to detect the coaxiality error between the main support systems 1 on both sides and the turbine casing centerline. Based on the test results, adjust the angle adjustment screws 9 to align the rotation centerline of the zero-clearance radial rolling bearing 12 with the turbine casing centerline. Tighten the fastening screws of the adjustment module 11 and fix the adjustment module 11 so that the main support system 1 and the turbine bearing box form a whole.

[0056] 2. Install the auxiliary support system 2 and anti-vibration system 5. The V-shaped brackets 20 of the auxiliary support system 2 are mounted on the center plane of the turbine cylinder and bolted thereto. The auxiliary support system 2 can assist the main support system 1 in positioning according to the machining location. It also supports the powertrain system 3 and prevents flexural deformation of the slip spindle 8 during machining. The adjustable anti-vibration brackets 37 of the anti-vibration system 5 are mounted on the center plane of the turbine cylinder and bolted thereto. Used in long-axis machining, the anti-vibration system 5 improves rotor cutting rigidity and prevents machining errors caused by rotor vibration.

[0057] 3. Connect and position the powertrain system 3 and auxiliary support system 2, and install the axial feed system 4. The powertrain system 3 converts voltage signals into torque and speed to drive the tool 45, controlling speed and achieving precise positioning accuracy. It also guides the axial movement of the sliding spindle 8. The axial feed system 4 uses pulse signals to achieve precise angular displacement, and cooperates with the ball screw 33 to achieve high-precision axial feed motion.

[0058] 4. The sliding main shaft 8 is sequentially inserted into the inner hole of the main support system 1, the inner hole of the auxiliary support system 2, the inner hole of the sliding key sleeve 26 of the powertrain system 3, the inner hole of the displacement plate 32 of the axial feed system 4, the inner hole of the anti-vibration system 5 and the inner hole of the main support system 1 on the other side.

[0059] 5. Select a suitable tool 45 and install it to the appropriate position of the sliding spindle 8 and tighten it.

[0060] 6. Connect the control system to the plug wires of the servo motor 24 and the stepper motor 28. The control system uses a servo motor controller 51 and a stepper motor controller 52 to realize the forward and reverse rotation and speed control of the servo motor 24 and the stepper motor 28, complete the manual and automatic operation switching of the axial feed, and output the laser sensor signal to the terminal display.

[0061] 7. The detection system's slip test platform 6 is mounted on the slip spindle 8. Laser sensor II is positioned on the end face of the turbine bearing housing. Laser sensors I and II are connected to the control system, which in turn is connected to the terminal display. Laser sensor I detects whether the slip spindle 8 is parallel to the center of the turbine housing cavity. Laser sensor II projects its laser light onto the end face of the slip spindle 8 to detect its axial movement. The detection system primarily captures parameter variables through the laser sensor and provides real-time information feedback via the 485 transmission protocol. This system monitors the installation accuracy of the main support system 1 and auxiliary support system 2, as well as displacement and radial dimensional changes during machining.

[0062] 8. When performing on-site repair on the steam turbine, the servo motor 24 is controlled by the servo motor controller 51. The servo motor 24 drives the worm gear reducer 27 and the sliding key sleeve 26 to rotate, thereby driving the sliding spindle 8 to rotate. The sliding spindle 8 drives the tool 45 to rotate and cut. The stepper motor controller 52 controls the stepper motor 28. The output shaft of the stepper motor 28 drives the ball screw 33 to rotate, thereby driving the ball bearing 31 and the displacement plate 32 to move, thereby driving the displacement bearing 35 and the sliding spindle 8 to move, thereby driving the tool 45 to move, and completing the on-site repair of the steam turbine.

[0063] It can be understood that the above specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those skilled in the art should understand that the present invention can still be modified or replaced by equivalents to achieve the same technical effects; as long as the use requirements are met, they are within the scope of protection of the present invention.

Claims

1. A steam turbine on-site repair equipment, characterized by: It comprises a sliding main shaft (8), two main support systems (1), an auxiliary support system (2), a power assembly system (3), an axial feed system (4), a processing system (7), a detection system, and a control system, wherein a sliding groove is axially provided on the sliding main shaft (8); The main support system (1) includes a main frame (14), an adjustment module (11) mounted on the main frame (14), two zero-clearance radial rolling bearings (12) embedded in the central bearing hole of the adjustment module (11), and the adjustment module (11) adjusts the position and the angle of the rotation center of the zero-clearance radial rolling bearing (12) through an adjustment mechanism; the zero-clearance radial rolling bearings (12) of the two main support systems (1) are respectively mounted on both ends of the sliding main shaft (8); The auxiliary support system (2) includes a transition connector (22), the outer side of the transition connector (22) is connected to the V-shaped bracket (20), the inner center hole of the transition connector (22) is equipped with a deep groove ball bearing (23), and the deep groove ball bearing (23) is mounted on the sliding main shaft (8); The power assembly system (3) includes a servo motor (24), a worm gear reducer (27) connected to the servo motor (24), a sliding key sleeve (26) is installed in the center hole of the worm wheel at the output end of the worm gear reducer (27), a sliding key (25) is provided on the inner wall of the sliding key sleeve (26), the sliding key sleeve (26) is sleeved on the sliding main shaft (8), the sliding key (25) is embedded in the axial sliding groove of the sliding main shaft (8), and when the sliding key sleeve (26) rotates, it can drive the sliding main shaft (8) to rotate through the sliding key (25), and the worm gear reducer (27) is connected to the transition connector (22); The axial feeding system (4) includes a stepper motor (28), the stepper motor (28) is connected to a feed fixed plate (29), a bearing (30) is provided at the upper end of the feed fixed plate (29), a channel is provided at the lower end of the feed fixed plate (29), the bearing (30) is sleeved on the output shaft of the stepper motor (28), the output shaft of the stepper motor (28) is connected to a ball screw (33), a ball bearing (31) is matched and connected to the ball screw (33), the ball bearing (31) is mounted on the upper part of the displacement plate (32), a displacement bearing (35) is mounted on the lower part of the displacement plate (32), the sliding spindle (8) passes through the lower end channel of the feed fixed plate (29), the displacement bearing (35) is sleeved on the sliding spindle (8) and can drive the sliding spindle (8) to axially displace; the lower part of the feed fixed plate (29) is connected to the worm gear reducer (27); The machining system (7) includes a tool (45) connected to a sliding spindle (8); The detection system includes a laser sensor I arranged on a slip detection platform (6) and a laser sensor II arranged on the end surface of a turbine bearing box. The slip detection platform (6) is mounted on a slip spindle (8). The laser sensor I and the laser sensor II are respectively connected to a control system, and the control system is connected to a terminal display. The control system comprises a servo motor controller (51) connected to the servo motor (24) and a stepper motor controller (52) connected to the stepper motor (28).

2. The steam turbine on-site repair equipment according to claim 1, characterized in that: The adjustment mechanism of the main support system (1) comprises a displacement adjustment frame (10) and an angle adjustment screw (9). An adjustment module (11) is arranged in the displacement adjustment frame (10). The four side walls of the adjustment module (11) are respectively provided with slider grooves. The displacement slider (16) is installed in the slider groove and can move along the slider groove. The four side walls of the displacement adjustment frame (10) are respectively connected with the adjustment screws (15). The adjustment screws (15) are screwed into the screw holes of the side walls of the displacement adjustment frame (10) and pressed against the displacement slider (16) to limit the adjustment module (11). Angle adjustment screws (9) are respectively installed in multiple directions of the adjustment module (11). The front end of the angle adjustment screw (9) presses against the main frame (14). The angle of the rotation center of the zero-clearance radial rolling bearing (12) is adjusted by adjusting the screwing of the angle adjustment screw (9). After the angle of the rotation center of the zero-clearance radial rolling bearing (12) is adjusted, the adjustment module (11) is fixed to the main frame (14) by fastening screws.

3. The steam turbine on-site repair equipment according to claim 1, characterized in that: The main frame (14) of the main support system (1) is circumferentially arranged with multiple slide grooves (17) on both the front and back sides, and connecting legs (18) are installed in the multiple slide grooves (17) on the front or back side of the main frame (14).

4. The steam turbine on-site repair equipment according to claim 3, characterized in that: The connecting leg (18) is provided with an adjustment hole, and the connecting screw (13) passes through the adjustment hole and is connected to the screw hole in the slide groove (17) and connects the connecting leg (18) in the slide groove (17). By adjusting the position of the connecting screw (13) on the adjustment hole of the connecting leg (18), the position of the connecting leg (18) in the slide groove (17) is adjusted.

5. The steam turbine on-site repair equipment according to claim 1, characterized in that: The sliding detection platform (6) includes a linear bearing (41) mounted on a sliding main shaft (8), the linear bearing (41) is connected to a fixed plate (42), the fixed plate (42) is connected to a guide sliding key (43) via a fastening screw (44), and the guide sliding key (43) can extend into an axial sliding groove of the sliding main shaft (8).

6. The steam turbine on-site repair equipment according to claim 1, characterized in that: The steam turbine on-site repair equipment also includes an anti-vibration system (5), which includes an anti-vibration support seat (36), a rolling bearing (40) is installed in the center hole of the anti-vibration support seat (36), an anti-vibration support seat pressure cover (39) is connected to the anti-vibration support seat (36), and the rolling bearing (40) is axially limited by the anti-vibration support seat pressure cover (39), and an adjustable anti-vibration support frame (37) is connected to the anti-vibration support seat (36), and the anti-vibration support seat (36) is mounted on the sliding main shaft (8).

7. The steam turbine on-site repair equipment according to claim 6, characterized in that: The adjustable anti-vibration support frame (37) is designed with an adjustment hole, and the adjustment screw (38) passes through the adjustment hole to connect the anti-vibration support seat (36) to the adjustable anti-vibration support frame (37). By adjusting the position of the adjustment screw (38) on the adjustment hole, the position of the anti-vibration support seat (36) on the adjustable anti-vibration support frame (37) is adjusted.

8. The steam turbine on-site repair equipment according to claim 1, characterized in that: The processing system (7) further includes a tool adjustment screw (46) connected to the tool (45), a plurality of connection screw holes are provided at intervals on the sliding spindle (8), and the tool (45) is connected to the corresponding screw holes through the tool adjustment screw (46) and is fastened through the tool fastening screw (47).

9. The steam turbine on-site repair equipment according to claim 1, characterized in that: The control system further comprises a control box (48), a control panel (49), a data transmission panel (50), and a power transformer (21). A servo motor controller (51) and a stepper motor controller (52) are arranged in the control box (48). The servo motor controller (51) and the stepper motor controller (52) are connected to the control panel (49) and the power transformer (21) respectively. The laser sensor I and the laser sensor II are connected to the data transmission panel (50) respectively. The data transmission panel (50) is connected to the terminal display.

10. The steam turbine on-site repair equipment according to claim 1, characterized in that: The deep groove ball bearing (23) of the auxiliary support system (2) is axially limited inside the transition connector (22) by a retaining spring (19).

11. The steam turbine on-site repair equipment according to claim 1, characterized in that: The axial feeding system (4) further includes a manual mechanism (34), the ball screw (33) being connected to the manual mechanism (34), and the ball screw (33) can be driven to rotate by manually rotating the manual mechanism (34).

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