Steam turbine generator rotor end coil forming equipment

Abstract

The present invention relates to a steam turbine generator rotor end coil forming device, comprising a press forming device and a hydraulic control device, wherein the press forming device is provided with two groups, the press forming device comprises a press forming mechanism and a ring body, the press forming mechanism is provided in a group of two, and multiple groups of press forming mechanisms are evenly distributed on the ring body; the device comprises a hydraulic control mechanism, an oil inlet separator and an oil outlet separator, the oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator, the oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator, the oil inlet separator and the oil outlet separator are arranged on the ring body, the oil inlet separator is connected to the oil inlet end of the press forming mechanism, and the oil outlet end of the press forming mechanism is connected to the oil outlet separator; the hydraulic control device controls the press forming mechanism to press the end of the steam turbine generator rotor coil. The present invention can accurately control the forming of the rotor coil end, and has the characteristics of high precision, stable and reliable system, and high production efficiency.

Description

Technical Field

[0001] The invention relates to the field of mold equipment, in particular to a steam turbine generator rotor end coil forming device. Background Art

[0002] The end pressing and forming of the rotor end coils of 300MW, 600MW and 1000MW large steam turbine generators at the rear end (excitation end and steam end) of the generator are mostly done manually with the help of simple machines, which has low forming precision and poor reliability.

[0003] China Patent Authorization Announcement No.: CN207682760U, discloses a motorized model device for forming a rotor coil of an automobile retarder, including a movable mold base and a central axis tube, a mounting plate is arranged on the side of the movable mold base, a positioning bolt is arranged on the mounting plate, a movable sleeve is installed on the movable mold base, an extrusion fixing part is arranged on the side of the movable sleeve, a claw pole is arranged outside the central axis tube, a rotor coil shaping chamber is arranged outside the claw pole, the claw pole is composed of a heat sink and a texture coating, and the heat sink is wrapped outside the texture coating. The utility model has good casting performance and heat dissipation performance, and can improve the molding quality of the rotor coil. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems existing in the prior art and provide a turbine generator rotor end coil forming device. The present invention can accurately control the rotor coil end forming and has the characteristics of high precision, stable and reliable system and high production efficiency.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] The equipment for forming the coil at the end of a turbine generator rotor is characterized in that it comprises a profiling device and a hydraulic control device, wherein the profiling device is provided with two groups, the profiling device comprises a profiling mechanism and a ring body, the profiling mechanisms are provided in a group of two, and a plurality of profiling mechanisms are evenly distributed on the ring body; the device comprises a hydraulic control mechanism, an oil inlet separator and an oil outlet separator, the oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator, the oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator, the oil inlet separator and the oil outlet separator are provided on the ring body, the oil inlet separator is connected to the oil inlet end of the profiling mechanism, and the oil outlet end of the profiling mechanism is connected to the oil outlet separator; the hydraulic control device controls the profiling mechanism to profil the end of the turbine generator rotor coil.

[0007] The pressing mechanism is provided with 8 groups.

[0008] The profiling mechanism includes a tile-shaped ferrous iron, a spherical pressure head, a connecting sleeve, a profiling cylinder and a T-shaped slider. The profiling cylinder is fixed on the ring body, the piston rod of the profiling cylinder is connected to the connecting sleeve, the connecting sleeve is connected to the spherical pressure head, the spherical pressure head is connected to the T-shaped slider, and the T-shaped slider is connected to the tile-shaped iron.

[0009] The oil inlet end of the profiling oil cylinder is connected to the oil outlet end of the oil inlet oil separator, and the oil outlet end of the profiling oil cylinder is connected to the oil inlet end of the oil outlet oil separator.

[0010] A stop valve is arranged between the oil inlet distributor and the profiling cylinder.

[0011] The hydraulic control mechanism includes a hydraulic station and an electric control cabinet, the electric control cabinet is connected to the hydraulic station, the oil outlet end of the hydraulic station is connected to the oil inlet separator, the oil inlet end of the hydraulic station is connected to the oil outlet separator, the oil inlet separator and the oil outlet separator are arranged on the ring body, the oil inlet separator is connected to the oil inlet end of the pressing mechanism, and the oil outlet end of the pressing mechanism is connected to the oil outlet separator.

[0012] The profiling device also includes a vertical adjustment mechanism and a moving mechanism, wherein the moving mechanism is connected to the profiling device and is used to adjust the lateral position of the profiling device, and the profiling device is connected to the vertical adjustment mechanism and is used to adjust the height of the profiling device.

[0013] The mobile mechanism includes a mobile trolley, a base A and a bottom plate. The profiling mechanism is connected to the base A, the base A is connected to the bottom plate, the bottom plate is used to adjust the north-south position of the profiling device, the bottom plate is slidably connected to the mobile trolley, and the mobile trolley is used to adjust the east-west position of the profiling device.

[0014] The vertical adjustment mechanism includes a screw rod, a lifting nut, a nut sleeve, a guide sleeve and a buffer structure. One end of the screw rod is fixedly connected to the ring body, and the other end is connected to the adjusting nut. A nut sleeve is arranged outside the adjusting nut, and the nut sleeve is connected in the guide sleeve. A buffer structure is arranged in the guide sleeve, and the buffer structure is used to support the nut sleeve. A connecting plate is fixedly connected to the bottom of the guide sleeve, and the connecting plate is connected to a base B. The base B is connected to a moving mechanism.

[0015] The buffer structure includes a thrust ball bearing, a circular plate and a butterfly spring. The thrust ball bearing, the circular plate and the butterfly spring are arranged in sequence from top to bottom in the guide sleeve. A nut sleeve is arranged above the thrust bearing.

[0016] The advantages of adopting the present invention are:

[0017] 1. The present invention can accurately control the forming of the rotor coil ends, and has the characteristics of high precision, stable and reliable system, and high production efficiency.

[0018] 2. In the present invention, the pressing mechanism is provided with 8 groups, which can make the shoe-shaped iron pressing connected end to end in sequence. When pressing the end coil of the steam turbine generator rotor, the contact area with the steam turbine generator rotor is maximized, which can better shape the rotor end coil.

[0019] 3. In the present invention, the vertical adjustment mechanism can adjust the height of the profiling device to ensure the parallelism between the profiling device and the rotor.

[0020] Fourth, in the present invention, a buffer structure is provided in the vertical adjustment mechanism, which can support the gravity transmitted from the adjustment nut and the nut sleeve and play a buffering role; the press device has an upward force when working, and can ensure

[0021] 5. In the present invention, the moving mechanism is connected to the profiling device, and the moving mechanism is used to adjust the lateral position of the profiling device. The profiling device is connected to the vertical adjustment mechanism, and the vertical adjustment mechanism is used to adjust the height of the profiling device; the parallelism between the profiling device and the rotor is ensured, and at the same time, the profiling device can be connected to the two ends of the automobile rotor; the shape of the gas end and the excitation end of the automobile rotor is ensured to be accurately pressed.

[0022] Sixth, the present invention can ensure that the pressed shapes of the gas end and the excitation end of the steam turbine generator rotor coil are accurate, and the steam turbine rotor coil is not damaged during the pressing process, thereby reducing the randomness of artificial pressing.

[0023] 7. The present invention can ensure the synchronization of the two profiling cylinders of each group of profiling mechanisms.

[0024] 8. In the present invention, a stop valve is provided between the oil inlet distributor and the profiling cylinder to facilitate the control of the position of the tile-shaped ferrous metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 for Figure 1 A partial enlarged view of

[0027] Figure 3 It is a front view of the pressing device;

[0028] Figure 4 for Figure 3 A partial enlarged view of

[0029] Figure 5 is a top view of the pressing device;

[0030] Figure 6 It is the left side view of the pressing device;

[0031] Figure 7 for Figure 6 A partial enlarged view of

[0032] Figure 8 for Figure 6 A partial enlarged view of

[0033] Fig. 9 It is a structural schematic diagram of the oil inlet oil separator;

[0034] Fig.10 It is a structural schematic diagram of the oil outlet oil separator;

[0035] Fig.11 It is a control diagram of the hydraulic system of the present invention;

[0036] The numbers in the figure are: 1, profiling device, 2, trolley, 3, hydraulic station, 4, electric control cabinet, 5, turbine generator rotor, 6, profiling mechanism, 7, ring body, 8, screw, 9, lifting nut, 10, nut sleeve, 11, guide sleeve, 12, thrust ball bearing, 13, round plate, 14, butterfly spring, 15, connecting plate, 16, base B, 17, V-shaped support block, 18, baffle, 19, base A, 20, bottom plate, 21, adjusting screw, 22, fastening screw, 23, L-shaped pressure plate, 24, locking screw, 25, clamping screw, 26, electrical pipeline, 27, oil inlet separator, 28, oil outlet separator, 61, T-shaped slider, 62, profiling cylinder, 63, connecting sleeve, 64, spherical pressure head, 65, tile-shaped pressure iron. DETAILED DESCRIPTION

[0037] Example 1

[0038] The coil forming equipment for the end of a turbine generator rotor comprises a forming device 1 and a hydraulic control device. The forming device 1 is provided with two groups. The forming device 1 comprises a forming mechanism 6 and a ring body 7. The forming mechanisms 6 are provided in a group of 2, and multiple groups of forming mechanisms 6 are evenly distributed on the ring body 7. The device comprises a hydraulic control mechanism, an oil inlet separator 27 and an oil outlet separator 28. The oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator 27, and the oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator 28. The oil inlet separator 27 and the oil outlet separator 28 are provided on the ring body 7. The oil inlet separator 27 is connected to the oil inlet end of the forming mechanism 6, and the oil outlet end of the forming mechanism 6 is connected to the oil outlet separator 28. The hydraulic control device controls the forming mechanism 6 to form the coil end of the turbine generator rotor 5.

[0039] Example 2

[0040] The automobile rotor coil forming equipment comprises a profiling device 1 and a hydraulic control device. The profiling device 1 is provided with two groups. The profiling device 1 comprises a profiling mechanism 6 and a ring body 7. The profiling mechanism 6 is provided in a group of 2, and multiple groups of profiling mechanisms 6 are evenly distributed on the ring body 7; the device comprises a hydraulic control mechanism, an oil inlet separator 27 and an oil outlet separator 28. The oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator 27, and the oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator 28. The oil inlet separator 27 and the oil outlet separator 28 are provided on the ring body 7, and the oil inlet separator 27 is connected to the oil inlet end of the profiling mechanism 6, and the oil outlet end of the profiling mechanism 6 is connected to the oil outlet separator 28; the hydraulic control device controls the profiling mechanism 6 to profil the coil end of the turbine generator rotor 5.

[0041] The pressing mechanisms 6 are provided in 8 groups.

[0042] Example 3

[0043] The coil forming equipment for the end of a steam turbine generator rotor comprises a forming device 1 and a hydraulic control device. The forming device 1 is provided with two groups. The forming device 1 comprises a forming mechanism 6 and a ring body 7. The forming mechanisms 6 are provided in a group of 2, and multiple groups of forming mechanisms 6 are evenly distributed on the ring body 7. The device comprises a hydraulic control mechanism, an oil inlet separator 27 and an oil outlet separator 28. The oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator 27, and the oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator 28. The oil inlet separator 27 and the oil outlet separator 28 are provided on the ring body 7. The oil inlet separator 27 is connected to the oil inlet end of the forming mechanism 6, and the oil outlet end of the forming mechanism 6 is connected to the oil outlet separator 28. The hydraulic control device controls the forming mechanism 6 to form the end of the steam turbine generator rotor 5.

[0044] The pressing mechanisms 6 are provided in 8 groups.

[0045] The profiling mechanism 6 includes a tile-shaped ferrous iron, a spherical pressure head 64, a connecting sleeve 63, a profiling cylinder and a T-shaped slider 61. The profiling cylinder is fixed on the ring body 7. The piston rod of the profiling cylinder is connected to the connecting sleeve 63. The connecting sleeve 63 is connected to the spherical pressure head 64. The spherical pressure head 64 is connected to the T-shaped slider 61. The T-shaped slider 61 is connected to the tile-shaped iron pressure 65.

[0046] The oil inlet end of the profiling cylinder is connected to the oil outlet end of the oil inlet separator 27 , and the oil outlet end of the profiling cylinder is connected to the oil inlet end of the oil outlet separator 28 .

[0047] A stop valve is provided between the oil inlet distributor 27 and the profiling cylinder.

[0048] Example 4

[0049] The steam turbine generator rotor end coil forming equipment comprises a press device 1 and a hydraulic control device. The press device 1 is provided with two groups. The press device 1 comprises a press mechanism 6 and a ring body 7. The press mechanisms 6 are arranged in a group of 2, and multiple groups of press mechanisms 6 are evenly distributed on the ring body 7. The device comprises a hydraulic control mechanism, an oil inlet separator 27 and an oil outlet separator 28. The oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator 27, and the oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator 28. The oil inlet separator 27 and the oil outlet separator 28 are arranged on the ring body 7. The oil inlet separator 27 is connected to the oil inlet end of the press mechanism 6, and the oil outlet end of the press mechanism 6 is connected to the oil outlet separator 28. The hydraulic control device controls the press mechanism 6 to press the end of the coil of the steam turbine generator rotor 5. The two groups of press devices 1 are respectively connected to the two ends (gas end and excitation end) of the steam turbine generator rotor 5.

[0050] The hydraulic control mechanism includes a hydraulic station 3 and an electric control cabinet 4. The electric control cabinet 4 is connected to the hydraulic station 3. The oil outlet end of the hydraulic station 3 is connected to the oil inlet separator 27. The oil inlet end of the hydraulic station 3 is connected to the oil outlet separator 28. The oil inlet separator 27 and the oil outlet separator 28 are arranged on the ring body 7. The oil inlet separator 27 is connected to the oil inlet end of the pressing mechanism 6. The oil outlet end of the pressing mechanism 6 is connected to the oil outlet separator 28.

[0051] The hydraulic station 3 and the electric control cabinet 4 are both mature existing technologies.

[0052] The hydraulic station is composed of the following parts:

[0053]

[0054] The pressing mechanisms 6 are provided in 8 groups.

[0055] The profiling mechanism 6 includes a tile-shaped ferrous iron, a spherical pressure head 64, a connecting sleeve 63, a profiling cylinder and a T-shaped slider 61. The profiling cylinder is fixed on the ring body 7. The piston rod of the profiling cylinder is connected to the connecting sleeve 63. The connecting sleeve 63 is connected to the spherical pressure head 64. The spherical pressure head 64 is connected to the T-shaped slider 61. The T-shaped slider 61 is connected to the tile-shaped iron pressure 65.

[0056] The oil inlet end of the profiling cylinder is connected to the oil outlet end of the oil inlet separator 27 , and the oil outlet end of the profiling cylinder is connected to the oil inlet end of the oil outlet separator 28 .

[0057] A stop valve is provided between the oil inlet distributor 27 and the profiling cylinder.

[0058] The oil inlet separator 27 is annular, and a groove connected to the oil inlet separator 27 is provided on the ring body 7. The oil inlet separator 27 is arranged inside the ring body 7, and a protective cover is arranged outside. The oil inlet separator 27 has 1 oil inlet and 4 oil outlets. The oil inlet is connected to the hydraulic station 3, and each of the 4 oil outlets is connected to 2 groups of profiling devices 1 (4 profiling cylinders); similarly, the oil outlet separator 28 is also annular, and is arranged inside the ring body 7, and a protective cover is arranged outside. The oil outlet separator 28 includes 4 oil inlets and 1 oil outlet, and each of the 4 oil inlets is connected to 2 groups of profiling devices 1 (4 profiling cylinders), and the oil outlet is connected to the hydraulic station 3.

[0059] The profiling device 1 further comprises a vertical adjustment mechanism and a moving mechanism, wherein the moving mechanism is connected to the profiling device 1 and is used to adjust the lateral position of the profiling device 1 , and the profiling device 1 is connected to the vertical adjustment mechanism and is used to adjust the height of the profiling device 1 .

[0060] The mobile mechanism includes a mobile trolley 2, a base A19 and a bottom plate 20, the profiling mechanism 6 is connected to the base A19, the base A19 is connected to the bottom plate 20, the bottom plate 20 is used to adjust the north-south position of the profiling device 1, the bottom plate 20 is slidably connected to the mobile trolley 2, and the mobile trolley 2 is used to adjust the east-west position of the profiling device 1. The profiling device 1 can be adjusted forward, backward, left and right through the action of the mobile trolley 2 and the bottom plate 20.

[0061] The ring body 7 is fixedly connected with a V-shaped support block 17, and the ring body 7 is connected to the base A19 through the V-shaped support block 17. The base A19 is provided with a groove, and the V-shaped support block 17 is slidably set in the groove. The V-shaped support block 17 passes through the groove and is fixedly connected with a baffle 18. The width of the baffle 18 is greater than the width of the groove. The baffle 18 can fix the V-shaped support block 17 to prevent the V-shaped support block 17 from sliding out of the groove. At the same time, the profiling device 1 is positioned. A fastening screw 22 is also provided on the base A19, and the fastening screw 22 is tightened inward to press the V-shaped support block 17.

[0062] The bottom plate 20 is slidably connected to the trolley 2 through an L-shaped pressing plate 23. Four L-shaped pressing plates 23 are provided. The L-shaped pressing plates 23 are fixed to the trolley 2 through screws. The bottom plate 20 can slide between the trolley 2 and the L-shaped pressing plates 23. Four bosses are provided on the trolley 2. Adjustment screws 21 are provided on the bosses. The adjustment screws 21 are all connected to the bottom plate 20. The bottom plate 20 is pushed by adjusting the adjustment screws 21 to achieve the purpose of adjusting the front and rear position of the profiling device 1. After the position adjustment is completed, the bottom plate 20 and the L-shaped pressing plate 23 are fastened by fixing screws, and the pressing plate and the trolley 2 are locked by locking screws 24.

[0063] The movable trolley 2 is slidably arranged on the ground, a sliding track is arranged on the ground, and the trolley 2 performs linear motion on the track.

[0064] The vertical adjustment mechanism includes a screw rod 8, a lifting nut 9, a nut sleeve 10, a guide sleeve 11 and a buffer structure. One end of the screw rod 8 is fixedly connected to the ring body 7, and the other end is connected to the adjustment nut. A nut sleeve 10 is arranged outside the adjustment nut, and the nut sleeve 10 is connected to the guide sleeve 11. A buffer structure is arranged inside the guide sleeve 11, and the buffer structure is used to support the nut sleeve 10. A connecting plate 15 is fixedly connected to the bottom of the guide sleeve 11, and the connecting plate 15 is connected to a base B, and the base B is connected to a moving mechanism. When the height needs to be adjusted, the lifting nut 9 is rotated by a force rod to adjust the height of the press device 1.

[0065] When adjusting the height, it is necessary to loosen the fastening screw 22 on the base A19, and then adjust the lifting nut 9. After the adjustment is completed, tighten the fastening screw 22.

[0066] The buffer structure includes a thrust ball bearing 12, a circular plate 13 and a butterfly spring 14. The thrust ball bearing 12, the circular plate 13 and the butterfly spring 14 are arranged in sequence from top to bottom in the guide sleeve 11. A nut sleeve 10 is arranged above the thrust bearing, and the butterfly spring 14 is arranged on a connecting plate 15.

Claims

1. Steam turbine generator rotor end coil forming equipment, characterized by: The invention comprises a profiling device (1) and a hydraulic control device. The profiling device (1) is provided with two groups. The profiling device (1) comprises a profiling mechanism (6) and a ring body (7). The profiling mechanism (6) is provided in a group of two. The multiple groups of profiling mechanisms (6) are evenly distributed on the ring body (7). The hydraulic control device comprises a hydraulic control mechanism, an oil inlet separator (27) and an oil outlet separator (28). The oil outlet end of the hydraulic control mechanism is connected to the oil inlet separator (27). The oil inlet end of the hydraulic control mechanism is connected to the oil outlet separator (28). The oil inlet separator (27) and the oil outlet separator (28) are provided on the ring body (7). The oil inlet separator (27) is connected to the oil inlet end of the profiling mechanism (6). The oil outlet end of the profiling mechanism (6) is connected to the oil outlet separator (28). The hydraulic control mechanism controls the profiling mechanism (6) to profil the coil end of the turbine generator rotor (5). The profiling device (1) further comprises a vertical adjustment mechanism and a moving mechanism, wherein the moving mechanism is connected to the profiling device (1) and is used to adjust the lateral position of the profiling device (1), and the profiling device (1) is connected to the vertical adjustment mechanism and is used to adjust the height of the profiling device (1); The vertical adjustment mechanism comprises a screw rod (8), a lifting nut (9), a nut sleeve (10), a guide sleeve (11) and a buffer structure; one end of the screw rod (8) is fixedly connected to the ring body (7), and the other end is connected to the adjustment nut; a nut sleeve (10) is arranged outside the adjustment nut; the nut sleeve (10) is connected inside the guide sleeve (11); a buffer structure is arranged inside the guide sleeve (11); the buffer structure is used to support the nut sleeve (10); a connecting plate (15) is fixedly connected to the bottom of the guide sleeve (11); the connecting plate (15) is connected to a base B; and the base B is connected to the moving mechanism; The profiling mechanism (6) comprises a tile-shaped pressure iron, a spherical pressure head (64), a connecting sleeve (63), a profiling cylinder and a T-shaped slide block (61); the profiling cylinder is fixed on the ring body (7); the piston rod of the profiling cylinder is connected to the connecting sleeve (63); the connecting sleeve (63) is connected to the spherical pressure head (64); the spherical pressure head (64) is connected to the T-shaped slide block (61); and the T-shaped slide block (61) is connected to the tile-shaped pressure iron (65); The oil inlet end of the profiling cylinder is connected to the oil outlet end of the oil inlet separator (27), and the oil outlet end of the profiling cylinder is connected to the oil inlet end of the oil outlet separator (28); A cut-off valve is provided between the oil inlet separator (27) and the profiling cylinder; The buffer structure comprises a thrust ball bearing (12), a circular plate (13) and a butterfly spring (14); the thrust ball bearing (12), the circular plate (13) and the butterfly spring (14) are arranged in sequence from top to bottom in the guide sleeve (11); a nut sleeve (10) is arranged above the thrust bearing; and the butterfly spring (14) is arranged on a connecting plate (15).

2. The turbine generator rotor end coil forming device according to claim 1, characterized in that: The pressing mechanisms (6) are provided in 8 groups.

3. The turbine generator rotor end coil forming equipment according to claim 1, characterized in that: The hydraulic control mechanism comprises a hydraulic station (3) and an electric control cabinet (4); the electric control cabinet (4) is connected to the hydraulic station (3); the oil outlet end of the hydraulic station (3) is connected to an oil inlet separator (27); the oil inlet end of the hydraulic station (3) is connected to an oil outlet separator (28); the oil inlet separator (27) and the oil outlet separator (28) are arranged on the ring body (7); the oil inlet separator (27) is connected to the oil inlet end of the pressing mechanism (6); and the oil outlet end of the pressing mechanism (6) is connected to the oil outlet separator (28).

4. The turbine generator rotor end coil forming device according to claim 1, characterized in that: The moving mechanism comprises a moving trolley (2), a base A (19) and a bottom plate (20); the profiling mechanism (6) is connected to the base A (19); the base A (19) is connected to the bottom plate (20); the bottom plate (20) is used to adjust the north-south position of the profiling device (1); the bottom plate (20) is slidably connected to the moving trolley (2); and the moving trolley (2) is used to adjust the east-west position of the profiling device (1).

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