On-site repairing equipment for steam turbine

Abstract

The invention relates to the technical field of steam turbine maintenance, in particular to steam turbine field repairing equipment. The equipment comprises a sliding main shaft, two main supporting systems, an auxiliary supporting system, a power assembly system, an axial feeding system, a machining system, a detection system and a control system, wherein a sliding groove is axially formed in the sliding main shaft. According to the method, the deformed part of the steam turbine can be subjected to field high-precision repair, the repair period is shortened, the repair cost is reduced, and the repair precision and the labor efficiency are improved.

Description

Technical field:

[0001] The 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 important equipment for the contemporary country. Steam turbines work under high temperature and high pressure for a long time, and often have problems such as cylinder deformation, eccentricity of the supporting bearing seat holes at both ends, and uneven gas seal gaps, which affect the stable operation of the unit. Completing 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 operations with low efficiency and poor precision; returning to professional manufacturers for repair has a long cycle and high cost. Therefore, it is imperative to develop equipment that can complete high-precision repair of deformed parts of steam turbines on site. Summary of the invention:

[0003] The technical problem to be solved by the present invention is to provide a steam turbine on-site repair equipment, which can realize on-site high-precision repair of the deformed parts of the steam turbine, shorten the repair cycle, reduce the repair cost, and improve the repair accuracy and labor efficiency. It overcomes the shortcomings of the existing steam turbine body deformation on-site repair mostly using manual operation, low efficiency and poor accuracy.

[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 a sliding groove is axially opened on the sliding main shaft;

[0005] The main support system comprises a main frame, an adjustment module mounted on the main frame, two zero-clearance radial rolling bearings are embedded in the central bearing hole of the adjustment module, and 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, and a deep groove ball bearing is installed in the center hole inside the transition connector, 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 feeding system includes a stepper motor, which is connected to a feed fixing plate, a bearing is provided at the upper end of the feed fixing plate, a channel is provided at the lower end of the feed fixing plate, the bearing is sleeved on the output shaft of the stepper motor, 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 installed on the upper part of the displacement plate, a displacement bearing is installed at the lower part of the displacement plate, the sliding spindle passes through the channel at the lower end of the feed fixing plate, the displacement bearing is sleeved on the sliding spindle and can drive the sliding spindle to axially displace; the lower part of the fixing 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 surface of a turbine bearing box. The slip detection platform is mounted on a slip spindle. 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.

[0011] The control system comprises 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 with adjustment screws. The adjustment screws are screwed into the screw holes of 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 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 to connect with the screw hole in the slide slot and connects the connecting leg in the slide slot. The position of the connecting screw on the adjustment hole of the connecting leg can be adjusted to thereby adjust the position of the connecting leg in the slide slot.

[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 is installed in the center hole of the anti-vibration support seat, an anti-vibration support seat pressure cover is connected to the anti-vibration support seat and the rolling bearing is axially 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-shake support frame is designed with an adjustment hole, and the adjustment screw passes through the adjustment hole to connect the anti-shake support seat to the adjustable anti-shake support frame. The position of the anti-shake support seat on the adjustable anti-shake 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 arranged at intervals on the sliding spindle. The tool is connected to the corresponding screw holes through the tool adjustment screw and is fastened through 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 the deformed parts of the steam turbine, shortens the repair period, reduces the repair cost, and improves the repair accuracy and labor efficiency. Description of the drawings:

[0023] The present invention is 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 It is a structural diagram of the auxiliary support system.

[0028] Figure 5 It is a structural diagram of the powertrain system.

[0029] Figure 6 It is a structural schematic 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] Fig. 9 This is a schematic diagram of the structure of the slip detection platform.

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

[0034] Fig.11 A schematic diagram of the processing system.

[0035] Fig.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 is axially provided with a slide 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 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;

[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, and 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, 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, and when the sliding key sleeve 26 rotates, the sliding main shaft 8 can be driven to rotate through the sliding key 25, and the worm gear reducer 27 is connected to the transition connector 22;

[0040] like Figure 6 As shown, the axial feeding system 4 includes a stepper motor 28, which is connected to a feed fixing plate 29, a bearing 30 is provided at the upper end of the feed fixing plate 29, and a channel is provided at the lower end of the feed fixing 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, and a displacement bearing 35 is installed at the lower part of the displacement plate 32, the sliding spindle 8 passes through the lower end channel of the feed fixing 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 fixing plate 29 is connected to the worm gear reducer 27;

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

[0042] like Fig.10 As shown, 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.

[0043] like Fig.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. The upper, lower, left and right 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 upper, lower, left and right four side walls of the displacement adjustment frame 10 are respectively connected with 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.

[0045] A plurality of slide grooves 17 are circumferentially arranged on both the front and back sides of the main frame 14 of the main support system 1 , and connecting legs 18 are installed in the plurality of slide 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 to connect with the screw hole in the slide slot 17 and connects the connecting leg 18 in the slide slot 17. The position of the connecting leg 18 in the slide slot 17 can be adjusted by adjusting the position of the connecting screw 13 on the adjustment hole of the connecting leg 18.

[0047] like Fig. 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, 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 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, in which 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.

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

[0050] like Fig.11As shown, the processing system 7 also includes a tool adjustment screw 46 connected to the tool 45 , and 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 through the tool fastening screw 47 .

[0051] like Fig.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. 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 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 two main support systems 1. First, fix the connecting legs 18 to the turbine bearing box by bolts according to the actual situation. The main frame 14 is provided with slide grooves 17 of different angles on both sides to cooperate with the connecting legs 18 to adapt to the distribution of bolt holes of the bearing box on the market. Adjust the position of the adjustment module 11 in the four directions of up, down, left and right so that the rotation center line of the zero-clearance radial rolling bearing 12 reaches the required position for work. After adjustment, tighten the adjustment screw 15, move the displacement slider 16, so that the adjustment screw 15 presses on the displacement slider 16 and then limits the adjustment module 11 in the four directions of up, down, left and right. At this time, the position adjustment of the zero-clearance radial rolling bearing 12 in the four directions of up, down, left and right is completed, and then the angle of the rotation center of the zero-clearance radial rolling bearing 12 is adjusted. The coaxiality error between the main support systems 1 on both sides and the center line of the turbine housing is detected by the laser sensor I of the sliding main shaft 8 and the sliding detection platform 6. According to the detection results, adjust the angle adjustment screw 9 so that the rotation center line of the zero-clearance radial rolling bearing 12 is consistent with the center line of the turbine housing. 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. Set up the auxiliary support system 2 and the anti-vibration system 5. The two ends of the V-shaped bracket 20 of the auxiliary support system 2 are mounted on the center plane of the steam turbine cylinder and fixed on the center plane of the steam turbine cylinder by bolts. The auxiliary support system 2 can assist the main support system 1 to complete the positioning function according to the different processing parts. It has the function of setting up the power assembly system 3 and can prevent the flexural deformation of the sliding main shaft 8 during the mechanical processing. The two ends of the adjustable anti-vibration support frame 37 of the anti-vibration system 5 are mounted on the center plane of the steam turbine cylinder and fixed on the center plane of the steam turbine cylinder by bolts. The anti-vibration system 5 is used in the long axis system working system to improve the rigidity of the rotor cutting process and avoid the processing error caused by the rotor vibration.

[0057] 3. Connect and position the power assembly system 3 and the auxiliary support system 2, and install the axial feed system 4. The power assembly system 3 can convert the voltage signal into torque and speed to drive the tool 45, control the speed, achieve position accuracy, and guide the axial movement of the sliding spindle 8. The axial feed system 4 realizes precise angular displacement through pulse signals and cooperates with the ball screw 33 to achieve high-precision axial feed movement.

[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 sliding detection table 6 of the detection system is installed on the sliding main shaft 8, and the laser sensor II is set on the end face of the turbine bearing box. The laser sensor I and laser sensor II are connected to the control system respectively, and the control system is connected to the terminal display. Laser sensor I is used to detect whether the sliding main shaft 8 is parallel to the center of the turbine housing cavity. The laser of laser sensor II is hit on the end face of the sliding main shaft 8 to detect the axial movement of the sliding main shaft 8. The detection system mainly captures parameter variables through laser sensors, realizes real-time information feedback through the 485 transmission protocol, and detects the installation accuracy of the main support system 1 and the auxiliary support system 2, as well as the displacement and radial dimension changes during the processing.

[0062] 8. When the steam turbine is repaired on site, 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 protection scope of the present invention.

Claims

1. A steam turbine on-site repair equipment, characterized in that: It comprises a sliding spindle (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 the sliding spindle (8) is provided with a slide groove in the axial direction; The main support system (1) comprises a main frame (14), an adjustment module (11) mounted 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 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) comprises a transition connector (22), the outer side of the transition connector (22) is connected to the V-shaped bracket (20), a deep groove ball bearing (23) is installed in the inner center hole of the transition connector (22), and the deep groove ball bearing (23) is mounted on the sliding main shaft (8); The power assembly system (3) comprises a servo motor (24), a worm gear reducer (27) connected to the servo motor (24), a sliding key sleeve (26) is installed in the central 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, the sliding main shaft (8) can be driven to rotate through the sliding key (25), and the worm gear reducer (27) is connected to the transition connecting body (22); The axial feeding system (4) comprises a stepper motor (28), the stepper motor (28) is connected to a feed fixing plate (29), a bearing (30) is provided at the upper end of the feed fixing plate (29), a channel is provided at the lower end of the feed fixing 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 fixing 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 fixing plate (29) is connected to the worm gear reducer (27); The machining system (7) comprises a tool (45) connected to a sliding spindle (8); The detection system comprises 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 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). The adjustment module (11) is respectively provided with angle adjustment screws (9) in multiple directions. 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) has a plurality of slide grooves (17) arranged circumferentially on both the front and back sides thereof, and connecting legs (18) are installed in the plurality of 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 to connect with the screw hole in the slide groove (17) and connects the connecting leg (18) in the slide groove (17). The position of the connecting screw (13) on the adjustment hole of the connecting leg (18) can be adjusted to thereby adjust the position of the connecting leg (18) in the slide groove (17).

5. The steam turbine on-site repair equipment according to claim 1, characterized in that: The sliding detection platform (6) comprises a linear bearing (41) mounted on a sliding main shaft (8), the linear bearing (41) is connected to a fixing plate (42), the fixing 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), 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), 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). 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 hole.

8. The steam turbine on-site repair equipment according to claim 1, characterized in that: The processing system (7) also includes a tool adjustment screw (46) connected to the tool (45), and a plurality of connection screw holes are arranged 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 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 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 a 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 means of 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 comprises 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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