A high-precision auxiliary device for steam turbine rotor installation

Abstract

The present invention discloses a high-precision auxiliary device for the installation of a steam turbine rotor, which includes a base and a support frame. The base is used to support the upper components. The support frame is installed on the base, and a guiding and anti-vibration component and an installation auxiliary component are provided on the support frame. A lifting drive component is provided on the base, and a retractable wheel component is provided below the base. The present invention relates to the technical field of the installation of steam turbine parts and has the following beneficial effects: The adjustable fixture of the installation auxiliary component can fix the position of the rotor without a hanging structure. The guiding and anti-vibration component can prevent the rotor from shaking when the rotor position rises, so that the rotor can maintain a horizontal installation position, prevent the rotor from shaking and colliding, facilitate cooperation with workers for assembly, and enable the rotor to be precisely installed.

Description

Technical Field

[0001] The present invention relates to the technical field of steam turbine part installation, and specifically to a high-precision auxiliary device for steam turbine rotor installation. Background Art

[0002] A steam turbine rotor is a combination of rotating components of a steam turbine, such as a main shaft, impellers or drums, blades, and couplings. A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated air flow and then jets onto the blades, causing the rotor equipped with the blade row to rotate and do work externally at the same time. Therefore, the assembly and installation of the rotor need to be carried out with high precision to make the rotor rotate more smoothly. In reality, usually only a lifting device is used to lift the rotor and move it to the installation position, and then manual labor is used for assembly. However, there is no hanging part on the rotor, so usually a rubber belt is used for bundling and then lifting. This method will cause the rotor not to maintain a horizontal installation position, and manual labor is still required to correct the position during assembly. However, the correction effect is not good, which is likely to cause the rotor to be bumped, resulting in the rotor not being able to be precisely installed. Summary of the Invention

[0003] To achieve the above objectives, the present invention is realized through the following technical solutions: A high-precision auxiliary device for steam turbine rotor installation, including a base and a support frame. The base is used to support the upper components. The support frame is installed on the base. A guiding and anti-vibration component and an installation auxiliary component are provided on the support frame. A lifting drive component is provided on the base. A retractable wheel component is provided below the base;

[0004] Among them, the guiding and anti-vibration component includes: a chute, a slider, a connecting rod, and a fixing plate;

[0005] The chute is opened inside the support frame. The slider is installed in the chute. The connecting rod is installed on the slider. The fixing plate is installed between the connecting rods;

[0006] The installation auxiliary component includes: a motor box, a rotating motor, a driving groove, a driving gear, a rotating seat, a toothed ring, a support plate, a telescopic column, a first electric telescopic column, a push plate, a clamping plate, a moving groove, a sliding plate, an upper clamp, a lower clamp, a rack column, an installation groove, a driving motor, and a main gear;

[0007] The driving groove is formed in the fixed plate. The motor box is mounted on the fixed plate. The rotating motor is installed in the motor box. The driving gear is mounted on the output end of the rotating motor and is disposed in the driving groove. The rotating seat is installed in the driving groove. The toothed ring is sleeved on the rotating seat and meshes with the driving gear. The support plate is mounted on the rotating seat. The clamping plate is connected to the support plate through a telescopic column. The first electric telescopic column is installed on the support plate. The pushing plate is mounted on the first electric telescopic column. The moving groove and the mounting groove are formed in the clamping plate. The lower fixture is mounted on the clamping plate. The sliding plate is installed in the moving groove. The rack column is mounted on the sliding plate and extends out of the clamping plate. The driving motor is installed in the mounting groove. The main gear is mounted on the output end of the driving motor and meshes with the teeth of the rack column, so that the rack column drives the sliding plate and the upper fixture to move up and down.

[0008] Preferably, a hook is provided on the fixed plate.

[0009] Preferably, support legs are provided below the base.

[0010] Preferably, rubber pads are provided on the pushing plate and the upper fixture.

[0011] Preferably, a scale bar is provided on the upper fixture.

[0012] Preferably, the lifting drive assembly includes: a drive box, a driver, a rotating shaft, a rotary bearing, a winding drum, a steel wire rope, and a fixed pulley;

[0013] The drive box is mounted on the base. The driver is installed in the drive box. One end of the rotating shaft is mounted on the output end of the driver. The other end of the rotating shaft is connected to the support frame through a rotary bearing. The winding drum is sleeved on the rotating shaft. The steel wire rope is wound around the winding drum and the steel wire is connected to the fixed plate through the fixed pulley.

[0014] Preferably, the fixed pulleys are respectively arranged on both sides and above the support frame.

[0015] Preferably, the retractable wheel assembly includes: a storage groove, a second electric telescopic column, and a universal wheel:

[0016] The storage groove is formed below the base. The second electric telescopic column is installed in the storage groove. The universal wheel is mounted below the second electric telescopic column.

[0017] Beneficial effects

[0018] The high-precision auxiliary device for installing a steam turbine rotor of the present invention has the following beneficial effects:

[0019] The adjustable fixture with auxiliary components can fix the position of the rotor without a suspension structure. The guiding and anti-vibration component can prevent the rotor from shaking when its position rises, enabling the rotor to maintain a horizontal installation position, preventing the rotor from shaking and hitting, facilitating the cooperation with workers for assembly, and enabling precise installation of the rotor. Brief Description of the Drawings

[0020] Figure 1 It is a front view structural schematic diagram of a high-precision auxiliary device for installing a steam turbine rotor according to the present invention.

[0021] Figure 2 It is a schematic diagram of the installation auxiliary component of a high-precision auxiliary device for installing a steam turbine rotor according to the present invention.

[0022] Figure 3 It is a partially enlarged schematic diagram of the installation auxiliary component of a high-precision auxiliary device for installing a steam turbine rotor according to the present invention.

[0023] Figure 4 It is a side view partially enlarged schematic diagram of the installation auxiliary component of a high-precision auxiliary device for installing a steam turbine rotor according to the present invention.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the installation position of the fixed pulley of a high-precision auxiliary device for installing a steam turbine rotor according to the present invention.

[0025] In the figure: 1. Base; 2. Support frame; 3. Chute; 4. Slide block; 5. Connecting rod; 6. Fixed plate; 7. Motor box; 8. Rotating motor; 9. Driving groove; 10. Driving gear; 11. Rotating seat; 12. Tooth ring; 13. Support plate; 14. Telescopic column; 15. First electric telescopic column; 16. Pushing plate; 17. Clamping plate; 18. Moving groove; 19. Slide plate; 20. Upper fixture; 21. Lower fixture; 22. Rack column; 23. Installation groove; 24. Driving motor; 25. Main gear; 26. Driving box; 27. Driver; 28. Rotating shaft; 29. Rotating bearing; 30. Winding drum; 31. Steel wire rope; 32. Fixed pulley; 33. Storage groove; 34. Second electric telescopic column; 35. Universal wheel;

[0026] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1-5 , the present invention provides a technical solution.

[0028] A high-precision auxiliary device for installing a steam turbine rotor, comprising a base 1 and a support frame 2. The base 1 is used to support the upper components. The support frame 2 is installed on the base 1. A guiding and anti-vibration component and an installation auxiliary component are provided on the support frame 2. A lifting drive component is provided on the base 1. A retractable wheel component is provided below the base 1.

[0029] Among them, the guiding and anti-vibration component includes: a chute 3, a slider 4, a connecting rod 5 and a fixing plate 6.

[0030] The chute 3 is opened inside the support frame 2. The slider 4 is installed in the chute 3. The connecting rod 5 is installed on the slider 4. The fixing plate 6 is installed between the connecting rods 5.

[0031] It should be noted that during the conventional hoisting and lifting process, the rotor is prone to shaking, which brings inconvenience to the construction. Therefore, when the fixing plate 6 is lifted, the slider 4 and the material box are lifted together through the connecting rod 5, which can support both sides of the material box and prevent the fixing plate 6 from shaking.

[0032] The installation auxiliary component includes: a motor box 7, a rotating motor 8, a driving groove 9, a driving gear 10, a rotating seat 11, a gear ring 12, a support plate 13, a telescopic column 14, an electric telescopic column 15, a push plate 16, a clamping plate 17, a moving groove 18, a sliding plate 19, an upper fixture 20, a lower fixture 21, a rack column 22, an installation groove 23, a driving motor 24 and a main gear 25.

[0033] The driving groove 9 is opened in the fixing plate 6. The motor box 7 is installed on the fixing plate 6. The rotating motor 8 is installed in the motor box 7. The driving gear 10 is installed on the output end of the rotating motor 8 and is arranged in the driving groove 9. The rotating seat 11 is installed in the driving groove 9. The gear ring 12 is sleeved on the rotating seat 11 and meshes with the driving gear 10. The support plate 13 is installed on the rotating seat 11. The clamping plate 17 is connected to the support plate 13 through the telescopic column 14. The electric telescopic column 15 is installed on the support plate 13. The push plate 16 is installed on the electric telescopic column 15. The moving groove 18 and the installation groove 23 are opened on the clamping plate 17. The lower fixture 21 is installed on the clamping plate 17. The sliding plate 19 is installed in the moving groove 18. The rack column 22 is installed on the slider 4 and extends out of the clamping plate 17. The driving motor 24 is installed in the installation groove 23. The main gear 25 is installed on the output end of the driving motor 24 and meshes with the teeth of the rack column 22.

[0034] It should be noted that when clamping the rotor, the rotor is placed on the lower fixture 21. The driving motor 24 drives the main gear 25 to rotate, so that the rack column 22 drives the slide plate 19 and the upper fixture 20 to move up and down, realizing the clamping and fixing of the rotor. By adjusting the expansion and contraction of the electric telescopic column 15, the horizontal position of the clamping plate 17 can be adjusted in cooperation with the telescopic column 14, so that one end of the outer end of the rotor moves towards the rotor installation position on the steam turbine.

[0035] Preferably, further, a hook is provided on the fixing plate 6.

[0036] It should be noted that the hook is used to conveniently connect the steel wire rope 31.

[0037] Preferably, further, support legs are provided below the base 1.

[0038] It should be noted that the support legs are used to support the entire device when lifting the position of the rotor.

[0039] Preferably, further, rubber pads are provided on the push plate 16 and the upper fixture 20.

[0040] It should be noted that the rubber pads can protect the rotor and prevent the rotor from being bumped.

[0041] Preferably, further, a scale bar is provided on the upper fixture 20.

[0042] It should be noted that the scale bar is used to adjust the distance between the upper fixture 20 and the lower fixture 21 according to the diameter of the rotor.

[0043] Preferably, further, the lifting drive assembly includes: a drive box 26, a driver 27, a rotating shaft 28, a rotary bearing 29, a winding drum 30, a steel wire rope 31 and a fixed pulley 32;

[0044] The drive box 26 is installed on the base 1, the driver 27 is installed in the drive box 26, one end of the rotating shaft 28 is installed on the output end of the driver 27, the other end of the rotating shaft 28 is connected to the support frame 2 through the rotary bearing 29, the winding drum 30 is sleeved on the rotating shaft 28, and the steel wire rope 31 is wound on the winding drum 30 and the steel wire is connected to the fixing plate 6 through the fixed pulley 32.

[0045] It should be noted that when the driver 27 is started, the rotating shaft 28 drives the winding drum 30 to rotate on the rotary bearing 29, so that the steel wire rope 31 starts to wind, and the material box is pulled up through the fixed pulley 32, realizing the lifting of the rotor position. The fixed pulley 32 can prevent the steel wire rope 31 from rubbing against the support frame 2, resulting in wear of the support frame 2 or the steel wire rope 31.

[0046] Preferably, further, the retractable wheel assembly includes: a storage groove 33, a second electric telescopic column 34, and a universal wheel 35:

[0047] The storage groove is opened below the base 1, the second electric telescopic column 34 is installed in the storage groove 33, and the universal wheel is installed below the second electric telescopic column.

[0048] It should be noted that when the position of the device needs to be moved, the electric telescopic column 34 pushes the universal wheel 35 out of the storage groove 33, and then the device can be moved. When starting the installation, the electric telescopic column 34 drives the universal wheel 35 to retract into the storage groove, and the support legs are used to support the entire machine.

[0049] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-precision auxiliary device for steam turbine rotor installation, comprising a base and a support frame. The base is used to support the upper components, and the support frame is installed on the base. It is characterized in that, The support frame is provided with a guiding and anti-vibration component and an installation assisting component, the base is provided with a lifting driving component, and a retractable wheel component is provided below the base; Among them, the guiding and anti-vibration component includes: a chute, a slider, a connecting rod, and a fixing plate; The chute is opened inside the support frame, the slider is installed in the chute, the connecting rod is installed on the slider, and the fixing plate is installed between the connecting rods; The installation assisting component includes: a motor box, a rotating motor, a driving groove, a driving gear, a rotating seat, a toothed ring, a support plate, a telescopic column, a first electric telescopic column, a push plate, a clamping plate, a moving groove, a sliding plate, an upper clamp, a lower clamp, a rack column, an installation groove, a driving motor, and a main gear; The driving groove is opened in the fixing plate, the motor box is installed on the fixing plate, the rotating motor is installed in the motor box, the driving gear is installed on the output end of the rotating motor and is arranged in the driving groove, the rotating seat is installed in the driving groove, the toothed ring is sleeved on the rotating seat and meshes with the driving gear, the support plate is installed on the rotating seat, the clamping plate is connected to the support plate through the telescopic column, the first electric telescopic column is installed on the support plate, the push plate is installed on the first electric telescopic column, the moving groove and the installation groove are opened on the clamping plate, the lower clamp is installed on the clamping plate, the sliding plate is installed in the moving groove, the rack column is installed on the sliding plate and extends out of the clamping plate, the driving motor is installed in the installation groove, and the main gear is installed on the output end of the driving motor and meshes with the teeth of the rack column, so that the rack column drives the sliding plate and the upper clamp to move up and down.

2. The high-precision auxiliary device for installing a steam turbine rotor according to claim 1, wherein, A hook is provided on the fixing plate.

3. A high-precision auxiliary device for installing a steam turbine rotor according to claim 1, characterized in that, Support legs are provided below the base.

4. A high-precision auxiliary device for installing a steam turbine rotor according to claim 1, characterized in that, Rubber pads are provided on the push plate and the upper clamp.

5. An auxiliary device with high precision for installing a steam turbine rotor according to claim 1, characterized in that, A scale bar is provided on the upper clamp.

6. The high-precision auxiliary device for installing a steam turbine rotor according to claim 1, characterized in that, The lifting driving component includes: a driving box, a driver, a rotating shaft, a rotating bearing, a winding drum, a steel wire rope, and a fixed pulley; The driving box is installed on the base, the driver is installed in the driving box, one end of the rotating shaft is installed on the output end of the driver, the other end of the rotating shaft is connected to the support frame through the rotating bearing, the winding drum is sleeved on the rotating shaft, the steel wire rope is wound on the winding drum, and the steel wire is connected to the fixing plate through the fixed pulley.

7. A high-precision auxiliary device for installing a steam turbine rotor according to claim 6, characterized in that, The fixed pulleys are respectively arranged on both sides and above the support frame.

8. The high-precision auxiliary device for installing a steam turbine rotor according to claim 1, characterized in that, The retractable wheel component includes: a storage groove, a second electric telescopic column, and a universal wheel; The storage groove is opened below the base, the second electric telescopic column is installed in the storage groove, and the universal wheel is installed below the second electric telescopic column.

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