Novel tool special for turning over runner plate of hydroelectric generating set

Abstract

A novel tool special for turning over a runner plate of a hydroelectric generating set comprises a hoisting adjusting structure and hoisting rotating structures matched with the hoisting adjusting structure, the hoisting adjusting structure comprises a hollow adjusting beam, and the hoisting rotating structures matched with the hollow adjusting beam in a limiting and moving mode are symmetrically arranged on the two sides of the hollow adjusting beam. First lifting lugs and limiting sliding grooves are symmetrically arranged on the hollow adjusting beam, a fixing base is arranged in the middle of the hollow adjusting beam and connected with a double-shaft motor, the output ends of the two sides of the double-shaft motor are connected with one ends of adjusting screw rods located at the symmetrical positions, and the other ends of the adjusting screw rods are connected with the hollow adjusting beam through connecting bases. By the adoption of the structure, the runner plate is quickly connected and fixed, a space is built for overturning operation, the number of operators is remarkably reduced, a ratchet wheel and ratchet matching structure ensures that the runner plate does not rotate in the overturning process, steering of the runner plate is stably operated, the overturning process is more stable and smoother, and the working efficiency is remarkably improved; the device is flexible in overall structure, firm and stable in butt assembly, stable and smooth in overturning and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment of a hydropower station, in particular to a new type of special tooling for turning over a mirror plate of a hydroelectric generator set. Background Art

[0002] The mirror plate of the generator set is associated with the rotor shaft and bearing system of the generator. It is a structural component in the thrust bearing that forms a hydrodynamic oil film lubrication with the thrust pad and bears axial load. The surface of the mirror plate is flat and smooth, like a mirror, hence the name "mirror plate". The size and mass of the mirror plate are generally large, especially in large hydroelectric generators. The huge mass of the mirror plate requires the cooperation of multiple people during maintenance, inspection, disassembly and flipping. In particular, in order to check whether the upper and lower surfaces of the mirror plate are flat and smooth, the mirror plate needs to be flipped. Traditional lifting equipment has huge problems when flipping the mirror plate, and it is difficult to operate. It can only rely on multiple people to cooperate with the overall collaboration to flip the mirror plate. The flipping process is not only cumbersome, but also difficult to operate and extremely inefficient. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a new type of special tooling for turning over the mirror plate of a hydroelectric generator set. Relying on the operation of two-way clamping and overall lifting, the fixed mirror plate can be quickly connected and fixed, creating space for the turning operation, significantly reducing the number of operators, and being more convenient and flexible; the ratchet and ratchet tooth matching structure ensures that the mirror plate will not rotate during the turning process, stably operates the steering of the mirror plate, and the turning process is more stable and smooth, which significantly improves work efficiency; the overall structure of the device is flexible, the installation is firm and stable, the turning is smooth and smooth, and it is highly practical.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a new type of special tooling for turning over the mirror plate of a hydroelectric generator set, including a hoisting adjustment structure and a hoisting rotation structure matched therewith, the hoisting adjustment structure includes a hollow adjustment beam, and hoisting rotation structures matched with its limited movement are symmetrically arranged on both sides of the hollow adjustment beam, and a first lifting ear and a limited sliding groove are symmetrically arranged on the hollow adjustment beam, and a fixed seat is arranged in the middle position of the hollow adjustment beam, and the fixed seat is connected to a double-axis motor, and the output ends on both sides of the double-axis motor are connected to one end of an adjusting screw in a symmetrical position, and the other end of the adjusting screw is connected to the hollow adjustment beam through a connecting seat;

[0005] The hoisting and rotating structure includes a movable bracket, the top of which is matched with the hollow adjusting beam for limited movement, the movable bracket is provided with a limiting slider matched with the limiting slide groove, the limiting slider is matched with the adjusting screw thread, and the bottom of the movable bracket is provided with a flip structure.

[0006] In the preferred scheme, the flipping structure includes a flipping seat connected to the bottom of the movable bracket, an adjustment groove is provided at the bottom of the flipping seat, the flipping seat is connected to the flipping shaft through a connecting bearing, a fixed clamp is provided at one end of the flipping shaft, and a positioning head is provided at the other end of the flipping shaft to cooperate with the flipping seat, a sprocket is provided on the flipping shaft, a hand chain is provided on the sprocket to cooperate with it, a ratchet is provided on the sprocket, a matching shaft is provided in the flipping seat, a pawl and a torsion spring that cooperate with the ratchet are provided on the matching shaft, and both ends of the torsion spring are respectively connected to the matching shaft and the flipping seat.

[0007] In a preferred solution, a guide cover cooperating with the sprocket and the hand chain is provided in the flip seat.

[0008] In a preferred solution, an anti-slip pad is provided on the fixed clamping plate.

[0009] In a preferred solution, the movable bracket is symmetrically provided with second lifting ears.

[0010] In a preferred solution, a reinforcement plate is provided on the movable bracket.

[0011] In a preferred solution, the thread directions of the adjusting screws connected to the output ends on both sides of the dual-axis motor are opposite.

[0012] The utility model provides a novel special tool for turning over the mirror plate of a hydroelectric generator set, which has the following beneficial effects by adopting the above structure:

[0013] (1) Relying on the operation of bidirectional clamping and overall lifting, the mirror plate can be quickly connected and fixed to create space for the flipping operation, significantly reducing the number of operators and making it more convenient and flexible;

[0014] (2) The ratchet and ratchet gear matching structure ensures that the mirror plate will not rotate during the flipping process, stabilizes the mirror plate steering, and makes the flipping process more stable and smooth, significantly improving work efficiency;

[0015] (3) The overall structure of the device is flexible, the installation is firm and stable, the flipping is smooth and stable, and it is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the hoisting adjustment structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the hoisting rotation structure of the utility model.

[0020] Figure 4It is a schematic diagram of the hoisting rotation structure of the utility model.

[0021] Figure 5 It is a schematic diagram of the flip structure of the utility model.

[0022] Figure 6 It is a schematic diagram of the flip structure of the utility model.

[0023] Figure 7 It is a schematic diagram of the ratchet matching structure of the utility model.

[0024] In the figure: lifting adjustment structure 1, lifting rotation structure 2, hollow adjustment beam 3, first lifting ear 4, limiting slide groove 5, fixed seat 6, dual-axis motor 7, adjusting screw 8, connecting seat 9, movable bracket 10, limiting slide block 11, second lifting ear 12, reinforcing plate 13, flip seat 14, adjusting groove 15, flip shaft 16, connecting bearing 17, fixing splint 18, anti-slip pad 19, positioning head 20, guide cover 21, sprocket 22, hand zipper 23, ratchet 24, pawl 25, matching shaft 26, torsion spring 27. DETAILED DESCRIPTION

[0025] like Figure 1-7 In the invention, a novel special tooling for turning over the mirror plate of a hydroelectric generator set is provided, comprising a hoisting adjustment structure 1 and a hoisting rotation structure 2 matched therewith, wherein the hoisting adjustment structure 1 comprises a hollow adjustment beam 3, and hoisting rotation structures 2 matched therewith for limiting movement are symmetrically arranged on both sides of the hollow adjustment beam 3, and a first lifting lug 4 and a limiting slide groove 5 are symmetrically arranged on the hollow adjustment beam 3, and a fixing seat 6 is provided in the middle position of the hollow adjustment beam 3, and the fixing seat 6 is connected to a double-axis motor 7, and the output ends on both sides of the double-axis motor 7 are connected to one end of an adjusting screw 8 in a symmetrical position, and the other end of the adjusting screw 8 is connected to the hollow adjustment beam 3 through a connecting seat 9;

[0026] The hoisting and rotating structure 2 includes a mobile bracket 10, the top of which is matched with the hollow adjusting beam 3 for limited movement, and the mobile bracket 10 is provided with a limiting slider 11 that cooperates with the limiting slide groove 5. The limiting slider 11 is threadedly matched with the adjusting screw 8, and the bottom of the mobile bracket 10 is provided with a flip structure.

[0027] In the preferred solution, the flip structure includes a flip seat 14 connected to the bottom of the mobile bracket 10, an adjustment slot 15 is provided at the bottom of the flip seat 14, the flip seat 14 is connected to the flip shaft 16 through a connecting bearing 17, a fixing clamp 18 is provided at one end of the flip shaft 16, a positioning head 20 matched with the flip seat 14 is provided at the other end of the flip shaft 16, a sprocket 22 is provided on the flip shaft 16, a hand chain 23 matched with it is provided on the sprocket 22, a ratchet 24 is provided on the sprocket 22, a matching shaft 26 is provided in the flip seat 14, a ratchet 25 matched with the ratchet 24 and a torsion spring 27 are provided on the matching shaft 26, and the two ends of the torsion spring 27 are respectively connected to the matching shaft 26 and the flip seat 14. The flip is smooth and reverse is avoided.

[0028] In a preferred solution, a guide cover 21 is provided in the flip seat 14 to cooperate with the sprocket 22 and the hand chain 23. The hand chain 23 is guided to move and precisely cooperate with the sprocket 22.

[0029] In a preferred solution, an anti-skid pad 19 is provided on the fixing clamping plate 18 to reduce the displacement distance of the mirror plate during the flipping process.

[0030] In a preferred solution, the mobile bracket 10 is symmetrically provided with second lifting ears 12. Auxiliary lifting and multi-point lifting are more stable.

[0031] In a preferred solution, a reinforcing plate 13 is provided on the mobile bracket 10 to improve the overall strength of the mobile bracket 10 .

[0032] In a preferred solution, the screw threads of the adjusting screws 8 connected to the output ends of the two sides of the dual-axis motor 7 are in opposite directions, so as to ensure that the hoisting rotating structures 2 on both sides can move synchronously in opposite directions.

[0033] The method of using the utility model is as follows: two sets of fixed clamps 18 in the hoisting rotation structure 2 are symmetrically clamped on both sides of the mirror plate, and the arc-shaped fixed clamps 18 can ensure that the mirror plate will not fall off when it is displaced by gravity during the flipping process, and then the double-axis motor 7 on the hoisting adjustment structure 1 is rotated to lock from both sides, and then the first lifting ear 4 and the second lifting ear 12 are used for multi-point lifting to ensure the stability of the lifting process, and finally the hand chain 23 is used to operate the flipping.

[0034] The beneficial effects of the utility model: relying on the operation of two-way clamping and overall lifting, the mirror plate can be quickly connected and fixed, creating space for the flipping operation, significantly reducing the number of operators, and being more convenient and flexible; the ratchet and ratchet tooth matching structure ensures that the mirror plate will not rotate during the flipping process, stably operates the mirror plate steering, and the flipping process is more stable and smooth, which significantly improves work efficiency; the overall structure of the device is flexible, the installation is firm and stable, the flipping is smooth and smooth, and it is highly practical.

Claims

1. A novel special tool for turning over mirror plates of a hydroelectric generator set, comprising a hoisting adjustment structure (1) and a hoisting rotation structure (2) matched therewith, characterized in that: The hoisting adjustment structure (1) comprises a hollow adjustment beam (3), and hoisting rotation structures (2) that cooperate with the hollow adjustment beam (3) for limited movement are symmetrically provided on both sides of the hollow adjustment beam (3), and a first lifting lug (4) and a limited sliding groove (5) are symmetrically provided on the hollow adjustment beam (3). A fixed seat (6) is provided in the middle of the hollow adjustment beam (3), and the fixed seat (6) is connected to a double-axis motor (7). The output ends on both sides of the double-axis motor (7) are connected to one end of an adjustment screw (8) in a symmetrical position, and the other end of the adjustment screw (8) is connected to the hollow adjustment beam (3) via a connecting seat (9); The hoisting rotation structure (2) comprises a movable bracket (10), the top end of the movable bracket (10) is matched with the hollow adjustment beam (3) for limited movement, the movable bracket (10) is provided with a limit slider (11) matched with the limit slide groove (5), the limit slider (11) is threadedly matched with the adjustment screw (8), and the bottom of the movable bracket (10) is provided with a flip structure.

2. According to claim 1, a new type of special tooling for turning over mirror plates of a hydroelectric generator set is characterized by: The flip structure comprises a flip seat (14) connected to the bottom of the movable bracket (10); an adjusting groove (15) is provided at the bottom of the flip seat (14); the flip seat (14) is connected to a flip shaft (16) via a connecting bearing (17); a fixing clamp (18) is provided at one end of the flip shaft (16); a positioning head (20) cooperating with the flip seat (14) is provided at the other end of the flip shaft (16); a sprocket (22) is provided on the flip shaft (16); a hand chain (23) cooperating with the sprocket (22); a ratchet (24) is provided on the sprocket (22); a matching shaft (26) is provided in the flip seat (14); a ratchet (25) cooperating with the ratchet (24) and a torsion spring (27) are provided on the matching shaft (26); and two ends of the torsion spring (27) are respectively connected to the matching shaft (26) and the flip seat (14).

3. According to claim 2, a new type of special tooling for turning over the mirror plate of a hydroelectric generator set is characterized by: The flip seat (14) is provided with a guide cover (21) that cooperates with the sprocket (22) and the hand chain (23).

4. According to claim 2, a new type of special tooling for turning over mirror plates of a hydroelectric generator set is characterized by: The fixing clamping plate (18) is provided with an anti-slip pad (19).

5. According to claim 1, a new type of special tooling for turning over mirror plates of a hydroelectric generator set is characterized by: The movable bracket (10) is symmetrically provided with second lifting ears (12).

6. The new type of special tooling for turning over the mirror plate of a hydroelectric generator set according to claim 1 is characterized by: The movable bracket (10) is provided with a reinforcing plate (13).

7. The new type of special tooling for turning over the mirror plate of a hydroelectric generator set according to claim 1 is characterized by: The screw threads of the adjusting screws (8) connected to the output ends on both sides of the dual-axis motor (7) are in opposite directions.

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