Hoisting equipment for overhauling steam turbine of thermal power plant

Abstract

The utility model discloses a thermal power plant steam turbine overhaul hoisting device, which belongs to the technical field of thermal power plant steam turbine overhaul, and comprises two support frames, the tops of the two support frames are fixedly connected with a transverse plate, the outer side of the transverse plate is provided with a connecting plate, and the outer surface of the other side of the connecting plate is slidably connected with a vertical plate. The bottom of the vertical plate is fixedly connected with a fixing frame, and by designing the transverse moving assembly and the vertical moving assembly, independent adjustment of the vertical plate and the fixing frame connected with the vertical plate in the horizontal direction and the vertical direction is achieved; the lifting equipment can be driven by the motor to quickly and accurately move to the position above the steam turbine under the condition that the lifting equipment is not disassembled or reassembled, so that the time and manpower required for integrally moving the lifting equipment are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal power plant steam turbine overhauls, more specifically, a thermal power plant steam turbine overhauls hoisting equipment. BACKGROUND

[0002] As an important base of power production, the stable operation of thermal power plants is of great significance to the national energy security and economic development. As one of the core equipment of thermal power plants, steam turbines bear the heavy responsibility of converting steam energy into mechanical energy, and their stability and reliability directly affect the overall operation efficiency and economic benefits of thermal power plants.

[0003] Patent No. CN220098261U discloses a thermal power plant steam turbine overhauls hoisting equipment, which includes a hoisting frame. The outer surface of the hoisting frame is fixedly connected with the lower end of the fixed block. The front end of the fixed block is provided with a fixed hole. The inner wall of the hoisting frame is movably connected with an adjusting structure. The front end of the adjusting structure is detachably connected with a hanging rope connecting hook. The hoisting equipment can adjust the distance between the two hanging rope connecting hooks by using the adjusting structure. The staff only needs to start the control motor to drive the rotating screw rod to rotate inside the sliding groove. The threaded hole and the rotating screw rod are connected by threads. The movement of the adjusting movable block is controlled. The outer wall of the rotating screw rod is engraved with two groups of threads in different directions, so as to control the movement of the two adjusting movable blocks inward or outward, and adjust the distance between the two adjusting movable blocks.

[0004] Although the device has many advantages, it still has the following problems: although the hoisting equipment can adjust the length of the steam turbine parts within a certain range, it is convenient for the hanging rope to better lift the steam turbine parts, but in the process of use, some steam turbines are placed not below the hoisting equipment, and the whole hoisting equipment needs to be moved. It takes a lot of time and manpower to move the hoisting equipment, including equipment disassembly, transportation, reassembly and other steps, which will slow down the repair work progress and prolong the downtime. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the shortcomings of the prior art, the utility model provides a thermal power plant steam turbine overhauls hoisting equipment, which solves the above problems.

[0007] (II) Technical scheme

[0008] In order to achieve the above-mentioned purpose, the utility model provides technical solutions as follows: a steam turbine maintenance hoisting equipment of thermal power plant, including two support frames, the top of two support frames is fixedly connected with horizontal plate, the outside of horizontal plate is equipped with connecting plate, the other side outer surface of connecting plate is slidably connected with vertical plate, the bottom of vertical plate is fixedly connected with fixed frame, still includes:

[0009] The horizontal moving assembly is located on the outer surface of the horizontal plate and is used for driving the vertical plate to move horizontally.

[0010] The vertical moving assembly is located on the outer surface of the vertical plate and is used for driving the vertical plate to move vertically.

[0011] The clamping assembly is located on the outer surface of the fixed frame and is used for clamping the steam turbine.

[0012] Preferably, the horizontal moving assembly includes a first motor, a first rack, a first guide rail, a second roller and a first gear, the outer surface of the horizontal plate close to the connecting plate is fixedly connected with the first rack and the first guide rail, the outer surface of the connecting plate is fixedly installed with the first motor, the output end of the first motor is fixedly connected with the first gear, the first gear is located between the first rack and the first guide rail and is meshingly connected with the first rack, the outer surface of the connecting plate is rotatably connected with four second rollers symmetrically distributed, and the four second rollers are rollingly connected with the outer surfaces of the corresponding first rack and the first guide rail.

[0013] Preferably, the vertical moving assembly includes a second motor, a second guide rail, a second rack and a second gear, the other side outer surface of the connecting plate is fixedly installed with the second motor, the output end of the second motor is fixedly connected with the second gear, the outer surface of the vertical plate is fixedly connected with the second guide rail and the second rack, and the second gear is located between the second guide rail and the second rack and is meshingly connected with the second rack.

[0014] Preferably, the outer surface of the connecting plate close to the second motor is rotatably connected with four first rollers symmetrically distributed, the vertical plate is located between the four first rollers, and the four vertical plates are rollingly connected with the corresponding second guide rail and second rack.

[0015] Preferably, the clamping assembly includes a moving clamp plate, a driving motor, a rectangular groove and a threaded rod, the bottom of the fixed frame is provided with a rectangular groove, the inside of the fixed frame is rotatably connected with a threaded rod, the inside of the rectangular groove is slidably connected with a moving clamp plate, the moving clamp plate is threadedly sleeved with the threaded rod, the outer surface of the fixed frame is fixedly installed with a driving motor, and the output end of the driving motor is fixedly connected with the threaded rod.

[0016] Preferably, the clamping assembly further comprises a placing groove, the fixing frame is provided in an L shape, and the outer surface close to the moving clamping plate of the fixing frame is provided with a placing groove.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a steam turbine maintenance hoisting equipment of thermal power plant has the following beneficial effects:

[0019] The steam turbine maintenance hoisting equipment of thermal power plant, through design horizontal movement subassembly and vertical movement subassembly, realized independent adjustment to the vertical board and the fixed frame connected to it in horizontal direction and vertical direction, make hoisting equipment can be in not disassembling, not reassembling condition, only through motor drive can be fast, accurate in the upper steam turbine of moving, greatly reduced the time and manpower required for integral movement hoisting equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is structure schematic view of the utility model;

[0021] Figure 2 It is structure schematic view of the utility model Figure 1 It is structure enlarged view of A place in the utility model;

[0022] Figure 3 It is structure side view of the utility model;

[0023] Figure 4 It is structure schematic view of the utility model Figure 3 It is structure enlarged view of B place in the utility model;

[0024] Figure 5 It is first gear structure schematic view of the utility model;

[0025] Figure 6 It is clamping assembly structure schematic view of the utility model.

[0026] In the drawing: 1, support frame;2, horizontal plate;3, vertical plate;4, connecting plate;5, fixed frame;6, moving clamping plate;7, drive motor;8, first motor;9, first rack;10, first guide rail;11, first roller;12, second motor;13, second roller;14, second guide rail;15, second rack;16, first gear;17, second gear;18, rectangular groove;19, threaded rod;20, placing groove. DETAILED DESCRIPTION

[0027] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] Please refer to Figures 1-6 The present application provides a technical scheme:

[0029] The steam turbine maintenance hoisting equipment of a thermal power plant comprises two support frames 1, the top of the two support frames 1 is fixedly connected with a horizontal plate 2, the outer side of the horizontal plate 2 is provided with a connecting plate 4, the other outer surface of the connecting plate 4 is slidably connected with a vertical plate 3, the bottom of the vertical plate 3 is fixedly connected with a fixing frame 5, and the steam turbine maintenance hoisting equipment further comprises:

[0030] The horizontal moving assembly is located on the outer surface of the horizontal plate 2 and is used for driving the vertical plate 3 to move horizontally;

[0031] The vertical moving assembly is located on the outer surface of the vertical plate 3 and is used for driving the vertical plate 3 to move vertically;

[0032] The clamping assembly is located on the outer surface of the fixing frame 5 and is used for clamping the steam turbine, and through the design of the horizontal moving assembly, the vertical moving assembly and the clamping assembly, the steam turbine can be quickly, accurately and safely hoisted and maintained.

[0033] Further, the horizontal moving assembly comprises a first motor 8, a first rack 9, a first guide rail 10, a second roller 13 and a first gear 16, the outer surface of the horizontal plate 2 close to the connecting plate 4 is fixedly connected with the first rack 9 and the first guide rail 10, the outer surface of the connecting plate 4 is fixedly installed with the first motor 8, the output end of the first motor 8 is fixedly connected with the first gear 16, the first gear 16 is located between the first rack 9 and the first guide rail 10 and is in meshing connection with the first rack 9, the outer surface of the connecting plate 4 is rotatably connected with four second rollers 13 which are symmetrically distributed, the four second rollers 13 are in rolling connection with the outer surfaces of the corresponding first rack 9 and the first guide rail 10, the output end of the first motor 8 drives the first gear 16 to rotate, since the first gear 16 is in meshing connection with the first rack 9 on the horizontal plate 2, the rotation of the first gear 16 will drive the connecting plate 4 and the entire vertical moving assembly (including the vertical plate 3, the fixing frame 5 and the like) connected with the connecting plate 4 to move horizontally along the direction of the first rack 9, the four second rollers 13 on the outer surface of the connecting plate 4 roll on the outer surfaces of the first rack 9 and the first guide rail 10, thereby ensuring the stability of the connection and the smoothness of the movement.

[0034] Further, the vertical moving assembly comprises a second motor 12, a second guide rail 14, a second rack 15 and a second gear 17, the other side outer surface of the connecting plate 4 is fixedly provided with the second motor 12, the output end of the second motor 12 is fixedly connected with the second gear 17, the outer surface of the vertical plate 3 is fixedly connected with the second guide rail 14 and the second rack 15, the second gear 17 is located between the second guide rail 14 and the second rack 15 and is in meshing connection with the second rack 15, the output end of the second motor 12 drives the second gear 17 to rotate, and since the second gear 17 is in meshing connection with the second rack 15 of the outer surface of the vertical plate 3, the rotation of the second gear 17 can drive the vertical plate 3 and the fixing frame 5 connected therewith to move vertically along the direction of the second rack 15.

[0035] Further, the outer surface of the connecting plate 4 close to the second motor 12 is rotatably connected with four first rollers 11 which are symmetrically distributed, the vertical plate 3 is located between the four first rollers 11, the four vertical plates 3 are in rolling connection with the corresponding second guide rail 14 and second rack 15, and the four first rollers 11 on the outer surface of the connecting plate 4 roll on the outer surfaces of the second guide rail 14 and the second rack 15 on the vertical plate 3, thereby ensuring the stability and accuracy of the vertical plate 3 during vertical movement.

[0036] Further, the clamping assembly comprises a moving clamping plate 6, a driving motor 7, a rectangular groove 18 and a threaded rod 19, the bottom of the fixing frame 5 is provided with the rectangular groove 18, the inside of the fixing frame 5 is rotatably connected with the threaded rod 19, the moving clamping plate 6 is slidably connected in the inside of the rectangular groove 18, the moving clamping plate 6 is threadedly sleeved with the threaded rod 19, the outer surface of the fixing frame 5 is fixedly provided with the driving motor 7, the output end of the driving motor 7 is fixedly connected with the threaded rod 19, the output end of the driving motor 7 drives the threaded rod 19 to rotate, and since the moving clamping plate 6 is threadedly sleeved with the threaded rod 19, the rotation of the threaded rod 19 can drive the moving clamping plate 6 to move in the rectangular groove 18 along the axial direction of the threaded rod 19, gradually approaching or moving away from the other side of the fixing frame 5, thereby realizing the clamping or releasing of the steam turbine.

[0037] Further, the clamping assembly further comprises a placing groove 20, the fixing frame 5 is L-shaped, and the outer surfaces of the fixing frame 5 and the moving clamping plate 6 close to each other are both provided with the placing groove 20, the outer surfaces of the fixing frame 5 and the moving clamping plate 6 close to each other are both provided with the placing groove 20, and these placing grooves 20 are used for accommodating and fixing the protruding part of the steam turbine, thereby ensuring the stability and safety of the steam turbine during clamping.

[0038] Working principle: when the workers need to use the power plant steam turbine maintenance hoisting equipment, when the position of the vertical plate 3 needs to be adjusted horizontally, the first motor 8 on the outer surface of the connecting plate 4 is started, the output end of the first motor 8 drives the first gear 16 to rotate, since the first gear 16 is engaged with the first rack 9 on the horizontal plate 2, therefore the rotation of the first gear 16 will drive the connecting plate 4 and the entire vertical moving assembly (including the vertical plate 3, the fixed frame 5 and the like) connected therewith to move horizontally along the direction of the first rack 9, the four second rollers 13 on the outer surface of the connecting plate 4 roll on the outer surfaces of the first rack 9 and the first guide rail 10, thereby ensuring the stability of the connection and the smoothness of the movement, when the vertical position of the vertical plate 3 needs to be adjusted, the second motor 12 is started, the output end of the second motor 12 drives the second gear 17 to rotate, since the second gear 17 is engaged with the second rack 15 on the outer surface of the vertical plate 3, therefore the rotation of the second gear 17 will drive the vertical plate 3 and the fixed frame 5 connected therewith to move vertically along the direction of the second rack 15, the four first rollers 11 on the outer surface of the connecting plate 4 roll on the outer surfaces of the second guide rail 14 and the second rack 15 on the vertical plate 3, thereby ensuring the stability and accuracy of the vertical plate 3 during the vertical movement, when the position of the fixed frame 5 is adjusted, when the steam turbine needs to be clamped, the driving motor 7 on the outer surface of the fixed frame 5 is started, the output end of the driving motor 7 drives the threaded rod 19 to rotate, since the moving clamp plate 6 is threadedly sleeved with the threaded rod 19, therefore the rotation of the threaded rod 19 will make the moving clamp plate 6 move in the axial direction of the threaded rod 19 in the rectangular groove 18, gradually approaching or moving away from the other side of the fixed frame 5, thereby realizing the clamping or releasing of the steam turbine, the outer surfaces of the fixed frame 5 and the moving clamp plate 6 approaching each other are provided with placing grooves 20, and these placing grooves 20 are used for accommodating and fixing the protruding parts of the steam turbine, thereby ensuring the stability and safety thereof during the clamping process.

[0039] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above examples, the above examples and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A hoisting device for overhauling a steam turbine of a thermal power plant, comprising two support frames (1), characterized in that: The top of two support frames (1) is fixedly connected with a horizontal plate (2), the outer side of the horizontal plate (2) is provided with a connecting plate (4), the other side of the outer surface of the connecting plate (4) is slidably connected with a vertical plate (3), the bottom of the vertical plate (3) is fixedly connected with a fixing frame (5), and the fixing frame (5) is further provided with: A horizontal moving assembly is arranged on the outer surface of the horizontal plate (2) and used for driving the vertical plate (3) to move horizontally; A vertical moving assembly is arranged on the outer surface of the vertical plate (3) and used for driving the vertical plate (3) to move vertically; A clamping assembly is arranged on the outer surface of the fixing frame (5) and used for clamping the steam turbine.

2. The hoisting device for overhauling a steam turbine of a thermal power plant according to claim 1, characterized in that: The horizontal moving assembly comprises a first motor (8), a first rack (9), a first guide rail (10), a second roller (13) and a first gear (16), the outer surface of the horizontal plate (2) close to the connecting plate (4) is fixedly connected with the first rack (9) and the first guide rail (10), the outer surface of the connecting plate (4) is fixedly provided with the first motor (8), the output end of the first motor (8) is fixedly connected with the first gear (16), the first gear (16) is located between the first rack (9) and the first guide rail (10) and is in meshing connection with the first rack (9), and the outer surface of the connecting plate (4) is rotatably connected with four second rollers (13) which are symmetrically distributed, and the four second rollers (13) are in rolling connection with the outer surfaces of the corresponding first rack (9) and first guide rail (10).

3. The hoisting device for the maintenance of a steam turbine of a thermal power plant according to claim 1, characterized in that: The vertical moving assembly comprises a second motor (12), a second guide rail (14), a second rack (15) and a second gear (17), the other side of the outer surface of the connecting plate (4) is fixedly provided with the second motor (12), the output end of the second motor (12) is fixedly connected with the second gear (17), the outer surface of the vertical plate (3) is fixedly connected with the second guide rail (14) and the second rack (15), and the second gear (17) is located between the second guide rail (14) and the second rack (15) and is in meshing connection with the second rack (15).

4. The hoisting device for overhauling a steam turbine of a thermal power plant according to claim 3, characterized in that: The outer surface of the connecting plate (4) close to the second motor (12) is rotatably connected with four first rollers (11) which are symmetrically distributed, the vertical plate (3) is located between the four first rollers (11), and the four vertical plates (3) are in rolling connection with the corresponding second guide rail (14) and second rack (15).

5. The hoisting device for the maintenance of a steam turbine of a thermal power plant according to claim 1, characterized in that: The clamping assembly comprises a moving clamping plate (6), a driving motor (7), a rectangular groove (18) and a threaded rod (19), the bottom of the fixing frame (5) is provided with the rectangular groove (18), the inside of the fixing frame (5) is rotatably connected with the threaded rod (19), the inside of the rectangular groove (18) is slidably connected with the moving clamping plate (6), the moving clamping plate (6) is threadedly sleeved with the threaded rod (19), the outer surface of the fixing frame (5) is fixedly provided with the driving motor (7), and the output end of the driving motor (7) is fixedly connected with the threaded rod (19).

6. A hoisting device for steam turbine overhauls in a thermal power plant according to claim 5, characterized in that: The clamping assembly further comprises a placing groove (20), the fixing frame (5) is provided in an L shape, and the fixing frame (5) and the outer surface close to the moving clamping plate (6) are both provided with the placing groove (20).

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