A cooling mechanism for producing a cast steel piece of a steam turbine

Abstract

The utility model relates to steam turbine technical field provides a cooling mechanism for steam turbine cast steel production, including main frame, the top of main frame is provided with recovery pool, the top of recovery pool is provided with cooling pool, the top of cooling pool is provided with transmission subassembly, the side of transmission subassembly is provided with strip cooler, the bottom of strip cooler is connected with main frame, the utility model discloses through the combination of first guide rail, second guide rail, sliding block and limiting post, can according to the complex structure of steam turbine cast steel piece curved surface porous, the position of limiting post is adjusted flexibly, makes it realize point -to -point limit and support through cast steel piece through -hole, solved the problem that the gravity is not stable, is easy to deviate in traditional placement mode, guarantees cast steel piece to keep stable in the transmission process, avoids the risk that the cooling is not even or drops because of the wobble.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine technology, specifically a cooling mechanism for the production of steam turbine cast steel parts. Background Technology

[0002] Cooling is a critical step in the production of steam turbine cast steel parts. By controlling the cooling rate and cooling path, the required mechanical properties (such as strength and toughness) can be obtained, deformation and cracks can be prevented, dimensional stability can be guaranteed, and favorable conditions can be created for heat treatment and machining.

[0003] Chinese patent application number CN202320998527.2 discloses a cooling mechanism for the production of steam turbine cast steel parts, comprising: a water storage tank, with two fixed blocks fixedly installed on the top surface of the water storage tank, and several support columns fixedly installed on the bottom surface of the water storage tank; a support frame is provided above the fixed blocks; a positioning plate is fixedly installed on the top surface of the fixed blocks; and the two ends of the bottom surface of the support frame are respectively fixedly installed to the top surfaces of the two fixed blocks; and a synchronization component, which is located above the fixed blocks and is used to synchronously adjust the position of the moving cast steel parts. A servo motor is provided, and when the servo motor starts, its rotating shaft rotates inside the socket hole, thereby driving the flipping block to flip between the two positioning plates. When the fan is adjusted in angle by the rotating shaft of the servo motor, it moves synchronously with the laterally moving cast steel parts, thus extending the contact time between the cast steel parts and the water mist, thereby ensuring the cooling of the cast steel parts.

[0004] However, existing technologies mainly utilize conveyor belts to transport cast steel parts, thereby performing cooling processes such as spraying and blowing in sequence. However, steam turbine cast steel parts often have curved and porous structures with complex geometry, uneven wall thickness, and narrow internal channels. They are easily deviated from the conveyor belt, interfering with the cooling effect and affecting work efficiency and product quality.

[0005] In summary, this utility model provides a cooling mechanism for the production of steam turbine cast steel parts to solve the above problems. Utility Model Content

[0006] This invention provides a cooling mechanism for the production of steam turbine cast steel parts, which solves the problem in the prior art that steam turbine cast steel parts are prone to deviating from the conveyor belt during cooling by limiting the movement path of the steam turbine cast steel parts.

[0007] The specific technical solution of this utility model is as follows:

[0008] A cooling mechanism for producing steam turbine cast steel parts includes a main frame, a recovery tank above the main frame, a cooling tank above the recovery tank, a transmission assembly above the cooling tank, a strip cooler on one side of the transmission assembly, and the bottom of the strip cooler connected to the main frame.

[0009] The transmission assembly includes a sliding frame, the bottom of which is fixedly connected to a cooling pool. A slide table is slidably connected to the top of the sliding frame, a transmission belt is provided on the top of the slide table, a mounting bracket is fixedly connected to the bottom of the slide table, a cast steel part is provided on the top of the mounting bracket, a first guide rail is fixedly connected to one side of the mounting bracket, a second guide rail is slidably connected to the side of the first guide rail, a sliding block is slidably connected to the side of the second guide rail, and a limit post is detachably connected to the side of the sliding block near the cast steel part.

[0010] In this invention, the recycling pool is used to collect cooling wastewater; the cooling pool is used to cool the turbine castings; the strip cooler can be a long strip cooling device from the prior art, which has functions such as spraying, blowing, and water injection; the sliding frame is a support set above the cooling pool, and the slide can slide on the sliding frame, thereby using the mounting frame to drive the castings to move linearly; since the turbine castings have a curved and porous structure, simply placing them on the mounting frame often results in an unstable center of gravity, making it easy to deviate from the mounting frame. Therefore, by moving two guide rails and sliding blocks to align with the through holes of the turbine castings, locking the positions of the guide rails and sliding blocks, and finally connecting the limiting post through the turbine castings to the sliding blocks, the turbine castings are provided with auxiliary support and limiting function, making the center of gravity of the turbine castings more stable when moving and less likely to deviate from the mounting plate.

[0011] In a preferred embodiment, a water pump is provided on the inner side of the main frame, and the output end of the water pump is connected to the strip cooler.

[0012] In this invention, a water pump is used to supply water to the strip cooler.

[0013] In a preferred embodiment, a drain turntable is rotatably connected to the bottom of the cooling pool.

[0014] In this invention, the drainage turntable is used to drain the water accumulated in the cooling pool into the recycling pool for recycling.

[0015] In a preferred embodiment, a first gear is meshed with one side of the transmission belt, a transmission rod is fixedly connected to the side of the first gear, the side of the transmission rod is rotatably connected to the sliding frame, and a second gear is fixedly connected to the end of the transmission rod away from the first gear.

[0016] In a preferred embodiment, a drive belt is meshed with the side of the second gear, and a drive gear is meshed with the side of the drive belt away from the second gear. The side of the drive gear is rotatably connected to the sliding frame.

[0017] In a preferred embodiment, a third gear is engaged with the side of the transmission belt away from the first gear, and the side of the third gear is rotatably connected to the sliding frame.

[0018] In this invention, a transmission belt is used to drive the slide table to slide along the sliding frame; the first gear and the third gear are used to load the transmission belt; the drive gear is used to provide rotational power; the drive belt transmits the rotational power of the drive gear to the second gear, and then to the first gear through the transmission rod, ultimately driving the transmission belt to move.

[0019] In a preferred embodiment, a third guide rail is provided above the second guide rail, and one side of the third guide rail is slidably connected to the first guide rail.

[0020] In a preferred embodiment, an auxiliary block is slidably connected to the side of the third guide rail, and an auxiliary column is detachably connected to the side of the auxiliary block near the cast steel part.

[0021] In this invention, the third guide rail, auxiliary block, and auxiliary column essentially further limit the position of the steam turbine cast steel parts, thereby improving the stability of the device.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This utility model, through the combination of a first guide rail, a second guide rail, a sliding block, and a limiting post, can flexibly adjust the position of the limiting post according to the complex structure of the curved and porous surface of the steam turbine cast steel part, so that it passes through the through hole of the cast steel part to achieve point-to-point limiting and support. This solves the problems of unstable center of gravity and easy displacement in the traditional placement method, ensures that the cast steel part remains stable during the transmission process, and avoids the risk of uneven cooling or falling due to shaking.

[0024] 2. This utility model, through the sliding connection structure of the sliding frame and the sliding table, combined with the transmission system consisting of the transmission belt, gears and drive gear disc, can realize the linear reciprocating motion of the cast steel parts above the cooling pool, which is convenient for controlling the immersion time of the cast steel parts in the cooling pool or the cooling path below the strip cooler, and meets different process requirements. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the cooling pool of this utility model.

[0027] Figure 3This is a schematic diagram of the slide table of this utility model.

[0028] Figure 4 This is a schematic diagram of the sliding frame of this utility model.

[0029] Figure 5 This is a schematic diagram of the mounting bracket of this utility model.

[0030] Figure 6 This is a schematic diagram of the drive belt of this utility model.

[0031] The attached diagram is labeled as follows: 1. Main frame; 2. Recycling pool; 3. Cooling pool; 4. Conveying assembly; 5. Strip cooler; 41. Sliding frame; 42. Slide table; 43. Drive belt; 6. Mounting bracket; 7. Cast steel component; 61. First guide rail; 62. Second guide rail; 63. Sliding block; 64. Limiting post; 11. Water pump; 31. Drainage turntable; 44. First gear; 45. Transmission rod; 46. Second gear; 47. Drive belt; 48. Drive gear disc; 49. Third gear; 65. Third guide rail; 66. Auxiliary block; 67. Auxiliary post. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0033] like Figure 1-6 As shown, this utility model provides a cooling mechanism for the production of steam turbine cast steel parts, including a main frame 1, a recovery tank 2 above the main frame 1, a cooling tank 3 above the recovery tank 2, a transmission assembly 4 above the cooling tank 3, a strip cooler 5 on one side of the transmission assembly 4, and the bottom of the strip cooler 5 connected to the main frame 1.

[0034] The transmission component 4 includes a sliding frame 41, the bottom of which is fixedly connected to the cooling pool 3. A slide table 42 is slidably connected to the top of the sliding frame 41. A transmission belt 43 is provided on the top of the slide table 42. A mounting bracket 6 is fixedly connected to the bottom of the slide table 42. A cast steel part 7 is provided on the top of the mounting bracket 6. A first guide rail 61 is fixedly connected to one side of the mounting bracket 6. A second guide rail 62 is slidably connected to the side of the first guide rail 61. A sliding block 63 is slidably connected to the side of the second guide rail 62. A limit post 64 is detachably connected to the side of the sliding block 63 near the cast steel part 7.

[0035] A water pump 11 is installed on the inner side of the main frame 1, and the output end of the water pump 11 is connected to the strip cooler 5.

[0036] A drain turntable 31 is rotatably connected to the bottom of the cooling pool 3.

[0037] A first gear 44 is meshed with one side of the transmission belt 43, a transmission rod 45 is fixedly connected to the side of the first gear 44, the side of the transmission rod 45 is rotatably connected to the sliding frame 41, and a second gear 46 is fixedly connected to the end of the transmission rod 45 away from the first gear 44.

[0038] The side of the second gear 46 is meshed with a drive belt 47, and the side of the drive belt 47 away from the second gear 46 is meshed with a drive gear 48. The side of the drive gear 48 is rotatably connected to the sliding frame 41.

[0039] The transmission belt 43 is engaged with a third gear 49 on the side away from the first gear 44, and the side of the third gear 49 is rotatably connected to the sliding frame 41.

[0040] A third guide rail 65 is provided above the second guide rail 62, and one side of the third guide rail 65 is slidably connected to the first guide rail 61.

[0041] The third guide rail 65 is slidably connected to an auxiliary block 66, and the auxiliary block 66 is detachably connected to an auxiliary column 67 on the side near the cast steel part 7.

[0042] The working principle of this utility model is as follows: When cooling the cast steel part 7, the operator first places the cast steel part 7 on the mounting bracket 6, then slides the second guide rail 62 along the first guide rail 61, aligning the second guide rail 62 with the target through hole position of the cast steel part 7; then slides the sliding block 63 along the second guide rail 62, aligning the limiting post 64 of the sliding block 63 with the through hole; after confirming the position, the sliding block 63 is fixed with bolts, and the limiting post 64 is passed through the through hole of the cast steel part 7 and detachably connected to the sliding block 63, forming a multi-support limiting to prevent the cast steel part 7 from shaking or shifting during transmission. Subsequently, the third guide rail 65 is slid along the first guide rail 61, and then the auxiliary block 66 is slid along the third guide rail 65, aligned with another set of through holes, and then the auxiliary post 67 is inserted for limiting.

[0043] After the limit is completed, the drive gear 48 is rotated, and the power is transmitted to the second gear 46 through the drive belt 47. The first gear 44 is driven to rotate through the transmission rod 45. The first gear 44 and the third gear 49 serve as the driving and driven pulleys of the transmission belt 43, respectively, driving the transmission belt 43 to rotate cyclically. This, in turn, causes the slide table 42 to slide along the sliding frame 41, thereby utilizing the strip cooler 5 and the cooling pool 3 for cooling.

[0044] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

Claims

1. A cooling mechanism for the production of steam turbine cast steel parts, characterized in that: The system includes a main frame (1), a recycling pool (2) above the main frame (1), a cooling pool (3) above the recycling pool (2), a transmission assembly (4) above the cooling pool (3), and a strip cooler (5) on one side of the transmission assembly (4). The bottom of the strip cooler (5) is connected to the main frame (1). The transmission assembly (4) includes a sliding frame (41), the bottom of which is fixedly connected to the cooling pool (3), and a sliding connection is made to the top of which is a... A slide (42) is provided with a transmission belt (43) on its top. A mounting bracket (6) is fixedly connected to the bottom of the slide (42). A cast steel part (7) is provided above the mounting bracket (6). A first guide rail (61) is fixedly connected to one side of the mounting bracket (6). A second guide rail (62) is slidably connected to the side of the first guide rail (61). A sliding block (63) is slidably connected to the side of the second guide rail (62). A limit post (64) is detachably connected to the side of the sliding block (63) near the cast steel part (7).

2. The cooling mechanism for producing steam turbine cast steel parts according to claim 1, characterized in that: A water pump (11) is provided on the inner side of the main frame (1), and the output end of the water pump (11) is connected to the strip cooler (5).

3. A cooling mechanism for producing steam turbine cast steel parts according to claim 1, characterized in that: The bottom of the cooling pool (3) is rotatably connected to a drain turntable (31).

4. A cooling mechanism for producing steam turbine cast steel parts according to claim 1, characterized in that: A first gear (44) is meshed with one side of the transmission belt (43), and a transmission rod (45) is fixedly connected to the side of the first gear (44). The side of the transmission rod (45) is rotatably connected to the sliding frame (41), and a second gear (46) is fixedly connected to the end of the transmission rod (45) away from the first gear (44).

5. A cooling mechanism for producing steam turbine cast steel parts according to claim 4, characterized in that: The side of the second gear (46) is meshed with a drive belt (47), and the side of the drive belt (47) away from the second gear (46) is meshed with a drive toothed disc (48). The side of the drive toothed disc (48) is rotatably connected to the sliding frame (41).

6. A cooling mechanism for producing steam turbine cast steel parts according to claim 5, characterized in that: The transmission belt (43) is meshed with a third gear (49) on the side away from the first gear (44), and the side of the third gear (49) is rotatably connected to the sliding frame (41).

7. A cooling mechanism for producing steam turbine cast steel parts according to claim 1, characterized in that: A third guide rail (65) is provided above the second guide rail (62), and one side of the third guide rail (65) is slidably connected to the first guide rail (61).

8. A cooling mechanism for producing steam turbine cast steel parts according to claim 7, characterized in that: The third guide rail (65) is slidably connected to an auxiliary block (66), and the auxiliary block (66) is detachably connected to an auxiliary column (67) on the side near the cast steel part (7).

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