Supporting device for maintenance test of hydropower station servomotor

Abstract

The utility model relates to the technical field of hydropower station water-turbine generator set speed regulation systems, in particular to a supporting device for a hydropower station servomotor overhaul test. The supporting structure comprises a main supporting arc plate and a lateral stabilizing rib plate, the two main supporting arc plates are oppositely arranged, and a semicircular opening is formed in the middle of the upper portion of each main supporting arc plate and used for being connected with the shape of the servomotor in an attached and sitting mode. A rectangular groove is formed in the middle of the upper part of each main supporting arc plate and is used for conveniently discharging oil when the servomotor oil discharging valve is overhauled and tested; the two spaced lateral stable rib plates are connected between the opposite main supporting arc plates, each lateral stable rib plate comprises a frame, and each end of each frame is provided with two bolt rods connected with the corresponding main supporting arc plate; the adjustable supporting base is connected with the main supporting arc plate through an adjusting mechanism. The device has the advantages of being balanced in stress, stable in supporting and capable of being flexibly adjusted, thoroughly overcomes the defects of a traditional tool, improves safety and efficiency in the overhauling process, and has certain universality and popularization value. And a length adjusting function is added, so that the device is adaptive to various servomotors and has the potential of being popularized to other power stations.

Description

Technical Field

[0001] This utility model relates to the technical field of speed regulation system for hydropower turbine generator sets, specifically a support device for maintenance and testing of hydropower station relays. Background Technology

[0002] In existing technologies, during Class A maintenance of hydro-generators, the relay unit (horizontal cylindrical shape), as a core component of the speed control system, is inconvenient to lift out and place for maintenance due to its large size, heavy weight, and irregular curved shape. Traditional methods of placing it using wooden supports or triangular supports result in problems such as excessive local stress, insufficient stability, and inconvenience for maintenance and adjustment, which can easily lead to equipment and personal safety hazards and reduce maintenance efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a support device for the maintenance and testing of hydropower station relay devices that is stable, flexibly adjustable, and can be disassembled and stored, in order to address the above-mentioned shortcomings.

[0004] The technical solution of this utility model is: a support device for maintenance and testing of a hydropower station relay, comprising two spaced main support arc plates and two lateral stabilizing ribs connected between them; each main support arc plate has a semi-circular arc opening in the middle of its upper part for fitting and sitting with the shape of the relay, and the two spaced lateral stabilizing ribs are connected between the two main support arc plates, each lateral stabilizing rib including a frame, each end of the frame having two bolt rods connected to the main support arc plate.

[0005] The above plan also includes:

[0006] Each of the main support arc plates is welded together from two steel plates and a partition between them.

[0007] The partitions are arranged on the upper and lower sides of the main support arc plate.

[0008] The frame consists of two spaced-apart shafts with multiple tie rods between them.

[0009] The lower part of the main support arc plate has two spaced semi-circular notches.

[0010] The main support arc plate has a maintenance groove for the oil drain valve of the relay in the middle.

[0011] The bottom of the main support arc plate is equipped with an anti-slip pad.

[0012] The advantages of this utility model are: 1. A specialized support device that provides balanced force, stable support, flexible adjustment, and easy assembly and disassembly, completely solving the drawbacks of traditional tools, improving the safety and efficiency of the maintenance process, and possessing certain versatility and promotional value. 2. The addition of a length adjustment function adapts to various relay models and has the potential to be promoted to other power stations.

[0013] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a simplified front view of the single main support arc plate of this utility model.

[0015] Figure 2 yes Figure 1 Simplified diagram of the left-side view structure.

[0016] Figure 3 This is a simplified elevation view of the lateral stabilizing rib structure of this utility model.

[0017] Figure 4 This is a simplified top view of the assembled structure of this utility model.

[0018] The component names in the diagram are as follows: 1. Main support arc plate, 2. Semi-circular arc opening, 3. Shaft rod, 4. Bolt rod, 5. Semi-circular notch, 6. Bolt hole, 7. Tie rod, 8. Partition plate, 9. Relay oil drain valve inspection groove, 10. Round hole, 11. Side arc edge. Detailed Implementation

[0019] See Figure 1-4 The support device for maintenance and testing of hydropower station relays includes two spaced main support arc plates 1, arranged opposite each other. Each main support arc plate 1 is welded from two steel plates and a partition plate 8 between them, forming a cavity structure of a certain thickness, which is lightweight. The partition plate 8 is arranged on the upper and lower sides of the main support arc plate 1. The upper middle part of each main support arc plate 1 has a semi-circular arc opening 2 for fitting and sitting with the shape of the relay. The lower part of the main support arc plate 1 has two spaced semi-circular notches 5 to reduce weight. The middle part of the main support arc plate 1 has a relay oil drain valve maintenance groove 9 to facilitate maintenance of the relay oil drain valve and drainage of oil stored in the cavity during testing. The bottom of the main support arc plate 1 is equipped with an anti-slip pad to further improve stability.

[0020] Two lateral stabilizing ribs connect the two spaced main support arc plates 1. Each lateral stabilizing rib includes a frame with two bolted rods 4 at each end, connected to the main support arc plate 1. The frame consists of two spaced-apart shafts 3, with four tie rods 7 between the shafts 3. The connection of the bolted rods 4 to the main support arc plates 1 allows for a small range of width adjustment, adapting to various relay models. The main support arc plates 1 are equipped with semi-circular notches 5, circular holes 10, and side arc edges 11, which reduce structural weight and increase structural strength, ensuring uniform stress distribution and preventing structural deformation.

[0021] During maintenance, the relay is hoisted and placed on the arc surface of the semi-circular opening 2 of the two spaced main support arc plates 1. The main support arc plates 1 are precisely fitted to the shape of the relay (gap ≤ 2mm), increasing the stress-bearing area by about 80% compared to the original structure, effectively improving the problem of local stress concentration, increasing the support stability by more than 3 times, and improving the efficiency of maintenance and testing by more than 50%. It is suitable for safe maintenance and testing of large relays.

[0022] The above description is merely a specific embodiment of this utility model, and the various examples do not constitute a limitation on the substantive content of this utility model.

Claims

1. A support device for maintenance and testing of hydropower station relays, characterized in that... It includes two spaced main support arc plates (1) and two lateral stabilizing ribs connected between them; each main support arc plate (1) has a semi-circular arc opening (2) in the middle of its upper part for sitting in a fit with the shape of the relay; the two spaced lateral stabilizing ribs are connected between the two main support arc plates (1); each lateral stabilizing rib includes a frame with two bolt rods (4) at each end of the frame connected to the main support arc plate (1).

2. The support device for maintenance and testing of hydropower station relays according to claim 1, characterized in that... Each main support arc plate (1) is welded together from two steel plates and a partition plate (8) between them.

3. The support device for maintenance and testing of hydropower station relays according to claim 2, characterized in that... The partition is arranged on the upper and lower sides of the main support arc plate (1).

4. The support device for maintenance and testing of hydropower station relays according to claim 1, characterized in that... The frame consists of two spaced-apart shafts (3) with multiple tie rods (7) between them.

5. The support device for maintenance and testing of hydropower station relays according to claim 1, characterized in that... The main support arc plate (1) has two spaced semi-circular notches (5) at its lower part.

6. The support device for maintenance and testing of hydropower station relays according to claim 1, characterized in that... The main support arc plate (1) has a relay oil drain valve maintenance groove (9) in the middle.

7. The support device for maintenance and testing of hydropower station relays according to claim 1, characterized in that... The bottom of the main support arc plate (1) is provided with an anti-slip pad.

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