Integral assembly equipment for water turbine stator

Abstract

The utility model discloses overall assembly equipment for a water turbine stator, and aims to provide the overall assembly equipment for the water turbine stator, which is convenient for placing the overall stator for assembly. The motor comprises a machine shell, a stator device, a guide ring, a lifting assembly and a telescopic assembly, the guide ring is installed on the machine shell and detachably connected with the machine shell, the lifting assembly is installed on the outer side of the guide ring, a plurality of supporting rods are installed on the inner wall of the lifting assembly, one end of each supporting rod penetrates through the guide ring and then is arranged in the guide ring, and the other end of each supporting rod is arranged in the telescopic assembly. A telescopic assembly is installed on the supporting rod, and the stator device is arranged in the guide ring. The beneficial effects of the utility model are that: it is convenient to place and assemble the whole stator, can better guide the stator device, facilitate the lifting action, better support the stator device, facilitate the falling of the stator device, and can better ensure the stability of the stator device.

Description

Technical Field

[0001] The utility model relates to the technical field related to water turbine stators, in particular to integral assembly equipment for water turbine stators. Background Art

[0002] The stator of a hydraulic turbine consists of a stator and a casing. During assembly, the assembled stator needs to be installed in the casing to complete the connection between the stator and the casing. During the stator assembly process, the stator needs to be positioned and raised and lowered. Due to the large size of the hydraulic turbine, it is easy to cause bumps and difficulties in operation during operation. Utility Model Content

[0003] The utility model aims to overcome the difficulty in positioning and guiding the stator and the casing during assembly in the prior art, and provides a turbine stator integral assembly device which is convenient for placing the stator integrally for assembly.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A device for assembling a hydraulic turbine stator as a whole comprises a casing, a stator device, a guide ring, a lifting assembly and a telescopic assembly. The guide ring is mounted on the casing and is detachably connected to the casing. The lifting assembly is mounted on the outside of the guide ring. Several support rods are mounted on the inner wall of the lifting assembly. One end of each support rod passes through the guide ring and is placed inside the guide ring. The telescopic assembly is mounted on the support rod. The stator device is placed inside the guide ring.

[0006] The casing is a protective device for the stator as a whole. The stator device needs to be assembled into the casing. After the casing is placed, the guide ring is buckled on the open end of the casing, and the guide ring is used to guide the stator device to the casing. During the guiding process, in order to avoid bumps or collisions, the stator device needs to be supported by the telescopic assembly, and the telescopic assembly is then driven down together by the lifting assembly. Under the guidance of the guide ring, the stator device is gradually aligned with the casing. After the stator device and the casing are aligned, the telescopic assembly is retracted and the stator device is completely dropped into the casing. At the same time, the telescopic assembly can be driven to rise and then extend by the lifting assembly. After extending, pressure is applied to the stator device, which can better push the stator device into the casing, thereby achieving the purpose of facilitating the placement of the stator as a whole for assembly.

[0007] Preferably, the upper end of the housing is open, a ring groove is provided on the top surface of the housing, a limit ring is installed on the bottom surface of the guide ring, and the guide ring is detachably connected to the housing through the cooperation of the limit ring and the ring groove. The guide ring includes a circular ring and an open ring, and the cross-section of the open ring is truncated. The end of the open ring with a smaller diameter is connected to one end of the circular ring, and the other end of the circular ring contacts the housing, and the circular ring corresponds to the stator device. The upper end of the housing is open and is used to place the stator device. The connection between the housing and the guide ring is positioned by the cooperation of the ring groove on the bottom surface of the guide ring and the limit ring, which can more quickly and effectively place the guide ring. The lower end of the guide ring is circular and consistent with the inner wall of the housing and corresponds to the diameter of the stator device, which facilitates the falling of the stator device. The open ring at the upper end is trumpet-shaped, which can gradually move the stator device toward the center, ensuring that the stator device enters the circular ring and thus enters the housing. Such a design can better guide the stator device.

[0008] Preferably, the lifting assembly includes a base, a pneumatic cylinder and a lifting ring, a plurality of guide rods distributed in a circular pattern are installed on the base, one end of the guide rod is connected to the base, the upper end of the guide rod is provided with a retaining ring, the upper end of the computer rod is connected to the retaining ring, the outer side surface of the lifting ring is provided with a plurality of guide grooves, the guide grooves correspond one-to-one to the guide rods, the lifting ring is slidably connected to the guide rods by cooperating with the guide grooves and the guide rods, the pneumatic cylinders are provided with a plurality of and are installed in a circular pattern on the base, and the pneumatic end of the pneumatic cylinder is connected to the bottom surface of the lifting ring. The base is installed on the ground, and several guide rods installed on the base are distributed in a circle. The upper ends of the guide rods are connected by retaining rings. The lifting rings placed on the inner sides of the guide rods cooperate with the guide rods through guide grooves. The lifting rings can slide up and down along the guide rods, and the power for the guide rods to slide up and down is provided by pneumatic cylinder 1. Pneumatic cylinder 1 is installed on the base to push the lifting ring to move up and down. The retaining ring at the upper end of the guide rod can limit the movement distance of the lifting ring to prevent the lifting ring from falling out. This design facilitates lifting actions.

[0009] Preferably, the guide ring is provided with a plurality of lifting grooves, which are distributed circumferentially along the axis of the guide ring. The support rods correspond one-to-one to the lifting grooves, one end of the support rods is connected to the lifting ring, and the other end of the support rods passes through the lifting grooves and is then placed within the guide ring. A support rod is provided on the inner side of the lifting ring, which passes through the lifting grooves on the guide ring and is then placed within the guide ring. The support rods can support the stator device within the guide ring. When the support rods support the stator device, the support rods follow the lifting assembly to descend, and the support rods can be guided and pushed to the center to correspond to the circular ring. The plurality of support rods distributed circumferentially can evenly bear force when supporting the stator device. Such a design can better support the stator device.

[0010] Preferably, one end of the support rod positioned within the guide ring corresponds to the inner side of the circular ring, and the end of the support rod positioned within the guide ring is chamfered. The end face of the support rod is aligned with the inner side of the circular ring. Under the guidance of the support rod, the stator assembly falls from the center, and the outer side of the stator assembly abuts against the end face of the support rod. The chamfer on the end face of the support rod also better guides the stator assembly as it falls, preventing it from bumping or colliding when it suddenly falls. This design facilitates the stator assembly to fall.

[0011] Preferably, the telescopic assembly includes a telescopic rod and a pneumatic cylinder 1, a sliding groove is provided on the bottom surface of the support rod, a sliding block is installed on the top surface of the telescopic rod, the telescopic rod is slidably connected to the support rod through the cooperation of the sliding block and the sliding groove, the pneumatic cylinder 1 is installed on the bottom surface of the support rod, and the pneumatic end of the pneumatic cylinder 1 is connected to one end of the telescopic rod. The cam is then retracted so that the stator assembly can be lowered into the housing so that the cam can be lowered into the housing and the cam is released, thereby preventing the stator assembly from falling off the cam before reaching the bottom surface.

[0012] The beneficial effects of the utility model are: it is convenient to place the stator as a whole for assembly, can better guide the stator device, facilitate lifting and lowering actions, better support the stator device, is conducive to the falling of the stator device, and can better ensure the stability of the stator device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle casing;

[0015] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle guide ring;

[0016] Figure 4 yes Figure 1 Schematic diagram of the structure of the middle lifting component;

[0017] Figure 5 yes Figure 1 Schematic diagram of the structure of the telescopic component.

[0018] In the figure: 1. Casing; 11. Ring groove; 2. Stator device; 3. Guide ring; 31. Limit ring; 32. Circular ring; 33. Open ring; 34. Lifting groove; 4. Lifting assembly; 41. Base; 42. Pneumatic cylinder 1; 43. Lifting ring; 44. Guide rod; 45. Retaining ring; 46. Guide groove; 5. Telescopic assembly; 51. Telescopic rod; 52. Pneumatic cylinder 2; 53. Sliding block, 6. Support rod; 61. Chamfer; 62. Sliding groove. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figure 1 In the embodiment, a turbine stator integral assembly device includes a casing 1, a stator device 2, a guide ring 3, a lifting assembly 4 and a telescopic assembly 5. The guide ring 3 is installed on the casing 1 and is detachably connected to the casing 1. The lifting assembly 4 is installed on the outside of the guide ring 3. Several support rods 6 are installed on the inner wall of the lifting assembly 4. One end of the support rod 6 passes through the guide ring 3 and is placed in the guide ring 3. The telescopic assembly 5 is installed on the support rod 6, and the stator device 2 is placed in the guide ring 3.

[0021] like Figure 2 、 Figure 3 As shown, the upper end of the casing 1 is open, and a ring groove 11 is provided on the top surface of the casing 1. A limit ring 31 is installed on the bottom surface of the guide ring 3. The guide ring 3 is detachably connected to the casing 1 through the cooperation of the limit ring 31 and the ring groove 11. The guide ring 3 includes a circular ring 48 and an open ring 33. The cross-sectional shape of the open ring 33 is a truncated cone. The end of the open ring 33 with a smaller diameter is connected to one end of the circular ring 48, and the other end of the circular ring 48 is in contact with the casing 1. The circular ring 48 corresponds to the stator device 2.

[0022] like Figure 4 The lifting assembly 4 shown includes a base 41, a pneumatic cylinder 42 and a lifting ring 43. Several guide rods 44 distributed in a circle are installed on the base 41. One end of the guide rod 44 is connected to the base 41. The upper end of the guide rod 44 is provided with a retaining ring 45. The upper end of the lifting rod 43 is connected to the retaining ring 45. The outer side surface of the lifting ring 43 is provided with several guide grooves 46. The guide grooves 46 correspond one-to-one to the guide rods 44. The lifting ring 43 is slidably connected to the guide rods 44 by cooperating with the guide grooves 46 and the guide rods 44. Several pneumatic cylinders 42 are provided and are distributed in a circle on the base 41. The pneumatic end of the pneumatic cylinder 42 is connected to the bottom surface of the lifting ring 43.

[0023] The guide ring 3 is provided with a plurality of lifting grooves 34, which are distributed circumferentially along the axis of the guide ring 3. The support rod 6 corresponds one-to-one to the lifting grooves 34. One end of the support rod 6 is connected to the lifting ring 43, and the other end of the support rod 6 passes through the lifting groove 34 and is placed in the guide ring 3.

[0024] One end of the support rod 6 disposed in the guide ring 3 corresponds to the inner side surface of the circular ring 48 , and one end of the support rod 6 disposed in the guide ring 3 is provided with a chamfer 61 .

[0025] like Figure 5 As shown, the telescopic assembly 5 includes a telescopic rod 51 and a pneumatic cylinder 2 52. A sliding groove 62 is provided on the bottom surface of the support rod 6. A sliding block 53 is installed on the top surface of the telescopic rod 51. The telescopic rod 51 is slidably connected to the support rod 6 through the cooperation of the sliding block 53 and the sliding groove 62. The pneumatic cylinder 2 52 is installed on the bottom surface of the support rod 6, and the pneumatic end of the pneumatic cylinder 2 52 is connected to one end of the telescopic rod 51.

[0026] During use, the pneumatic cylinder 2 52 moves to push the telescopic rod 51 out, and after extension, the stator device 2 is placed on the support rod 6. After the support rod 6 is placed, the pneumatic cylinder 1 42 moves to retract, driving the lifting ring 43 to descend, and after descending, the stator device 2 is driven to descend. During the descending process, the stator device 2 moves on the support rod 6 under the guidance of the guide ring 3 and approaches the center.

[0027] As the stator assembly 2 gradually approaches the center until it aligns with the ring 32 and the housing 1, it descends onto the telescopic rod 51, supported by the telescopic rod 51 until the stator assembly 2 enters the ring 32. After the stator assembly 2 enters the ring 32, the second pneumatic cylinder 52 retracts the telescopic rod 51, and the first pneumatic cylinder 42 raises the lifting ring 43. When the support rod 6 rises above the stator assembly 2, the telescopic rod 51 extends and again descends with the lifting ring 43, pressing against the top surface of the stator assembly 2, forcing the stator assembly 2 into the housing 2, completing the assembly of the entire stator.

Claims

1. A turbine stator integral assembly device, characterized in that: The invention comprises a housing (1), a stator device (2), a guide ring (3), a lifting assembly (4) and a telescopic assembly (5), wherein the guide ring (3) is mounted on the housing (1) and is detachably connected to the housing (1), the lifting assembly (4) is mounted on the outside of the guide ring (3), a plurality of support rods (6) are mounted on the inner wall of the lifting assembly (4), one end of the support rod (6) passes through the guide ring (3) and is placed in the guide ring (3), the telescopic assembly (5) is mounted on the support rod (6), and the stator device (2) is placed in the guide ring (3).

2. The integral assembly equipment for a hydraulic turbine stator according to claim 1, characterized in that: The upper end of the housing (1) is open, and a ring groove (11) is provided on the top surface of the housing (1). A limit ring (31) is installed on the bottom surface of the guide ring (3). The guide ring (3) is detachably connected to the housing (1) through the cooperation of the limit ring (31) and the ring groove (11). The guide ring (3) includes a circular ring (48) and an open ring (33). The cross-section of the open ring (33) is truncated cone-shaped. The end of the open ring (33) with a smaller diameter is connected to one end of the circular ring (48), and the other end of the circular ring (48) is in contact with the housing (1). The circular ring (48) corresponds to the stator device (2).

3. The integral assembly equipment for a turbine stator according to claim 2, characterized in that: The lifting assembly (4) includes a base (41), a pneumatic cylinder (42) and a lifting ring (43), wherein a plurality of guide rods (44) distributed in a circumferential manner are installed on the base (41), one end of the guide rod (44) is connected to the base (41), the upper end of the guide rod (44) is provided with a retaining ring (45), the upper end of the lifting ring (43) is connected to the retaining ring (45), the outer side surface of the lifting ring (43) is provided with a plurality of guide grooves (46), the guide grooves (46) correspond one to one with the guide rods (44), the lifting ring (43) is slidably connected to the guide rods (44) by cooperating with the guide grooves (46) and the guide rods (44), the pneumatic cylinder (42) is provided with a plurality of guide rods (44) and is distributed in a circumferential manner on the base (41), and the pneumatic end of the pneumatic cylinder (42) is connected to the bottom surface of the lifting ring (43).

4. The integral assembly equipment for a turbine stator according to claim 3, characterized in that: The guide ring (3) is provided with a plurality of lifting grooves (34), which are distributed in a circular pattern along the axis of the guide ring (3). The support rod (6) corresponds to the lifting grooves (34) one by one. One end of the support rod (6) is connected to the lifting ring (43), and the other end of the support rod (6) passes through the lifting groove (34) and is then placed in the guide ring (3).

5. The integral assembly equipment for a hydraulic turbine stator according to claim 4, characterized in that: One end of the support rod (6) placed in the guide ring (3) corresponds to the inner side surface of the circular ring (48), and one end of the support rod (6) placed in the guide ring (3) is provided with a chamfer (61).

6. The integral assembly equipment for a turbine stator according to claim 4, characterized in that: The telescopic assembly (5) includes a telescopic rod (51) and a pneumatic cylinder (52). A sliding groove (62) is provided on the bottom surface of the support rod (6). A sliding block (53) is installed on the top surface of the telescopic rod (51). The telescopic rod (51) is slidably connected to the support rod (6) through the cooperation of the sliding block (53) and the sliding groove (62). The pneumatic cylinder (52) is installed on the bottom surface of the support rod (6). The pneumatic end of the pneumatic cylinder (52) is connected to one end of the telescopic rod (51).

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