Hanging beam mechanism and runner plate turnover device

Abstract

The utility model relates to the field of runner plate turnover equipment, in particular to a hanging beam mechanism and a runner plate turnover device, the hanging beam mechanism comprises an extension assembly and fixing assemblies arranged at the two ends of the extension assembly; the extension assembly comprises a mandrel; the fixing assembly comprises hanging plate assemblies arranged at the two ends of the core shaft and a reinforcing assembly arranged between the hanging plate assemblies and the core shaft. Through mutual cooperation of the lifting beam mechanism, the mirror plate mechanism and the lifting rope, disassembly work of the balance beam can be avoided, high-place operation of workers can be avoided, and safety risks are reduced.

Description

Technical Field

[0001] This utility model relates to the field of mirror plate turning equipment, and in particular to a lifting beam mechanism and mirror plate turning device. Background Technology

[0002] As the component with the most critical surface finish in a hydro-generator unit, the mirror plate of a large hydro-generator unit bears the weight of the generator rotor and axial loads such as axial water thrust. Its performance not only affects the unit's output and efficiency, but also directly relates to whether it can operate safely and stably.

[0003] In recent years, mirror plate grinding has become an important maintenance task in the A-level overhaul of hydro-generator units. The mirror plates of large hydro-generator units are all over 4 meters in diameter and weigh up to 18 tons. Turning the mirror plates over is difficult, and there is currently no readily available device. Previously, when turning the mirror plates, a rotor lifting device—a balance beam—was typically used. However, using the balance beam as a turning device requires disassembling the beam, increasing the workload and raising the risk of falls from heights due to the work being done at height. Utility Model Content

[0004] In view of the problems existing in the above or prior art, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a lifting beam mechanism that can balance the weight of the mirror plate, so that the mirror plate can be lifted stably.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a lifting beam mechanism, which includes an extension component and a fixing component disposed at both ends of the extension component; the extension component includes a spindle; the fixing component includes a lifting plate component disposed at both ends of the spindle, and a reinforcing component disposed between the lifting plate component and the spindle.

[0007] As a preferred embodiment of the lifting beam mechanism of this utility model, the lifting plate assembly includes a first lifting plate symmetrically fixed at both ends of the mandrel, and a second lifting plate symmetrically fixed at both ends of the mandrel, wherein the second lifting plate is farther away from the center of mass of the mandrel relative to the first lifting plate.

[0008] In a preferred embodiment of the lifting beam mechanism of this utility model, the reinforcing component includes stiffening plates fixed on the side wall of the second lifting plate and the outer wall of the mandrel, and the stiffening plates are symmetrically fixed on the outer wall of the mandrel.

[0009] As a preferred embodiment of the lifting beam mechanism of this utility model, the first lifting plate is provided with a first lifting hole symmetrically with respect to the axis of the spindle, and the second lifting plate is provided with a second lifting hole symmetrically with respect to the axis of the spindle.

[0010] In a preferred embodiment of the lifting beam mechanism of this utility model, the length of the mandrel is greater than the diameter of the mirror plate.

[0011] In a preferred embodiment of the lifting beam mechanism of this utility model, the distance between the first lifting plate and the center of mass of the spindle is greater than the radius of the mirror plate.

[0012] In a preferred embodiment of the lifting beam mechanism of this utility model, the first lifting plate and the second lifting plate are welded to the outer wall of the mandrel, and the stiffening plate is welded to the outer wall of the mandrel and the second lifting plate.

[0013] Another objective of this invention is to provide a mirror plate turning device that can solve the problems of low efficiency in dismantling the balance beam during existing mirror plate turning processes and the increased risk to workers due to working at heights during mirror plate turning.

[0014] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a mirror plate flipping device, which includes not only a lifting beam mechanism, but also...

[0015] Fixed supports are symmetrically fixed along the diameter direction of the mirror plate;

[0016] The upper end of the hoisting rope passes through the first and second hoisting holes located at one end of the spindle, and the lower end is fitted around the outside of the fixed pier.

[0017] In a preferred embodiment of the mirror plate flipping device of this utility model, the fixing block is threadedly connected to the mirror plate.

[0018] In a preferred embodiment of the mirror plate turning device of this utility model, the length of the mandrel is 4500mm; the distance between the first hanging plate and the center of mass of the mandrel is 2075mm; and the distance between the second hanging plate and the center of mass of the mandrel is 2210mm.

[0019] In a preferred embodiment of the mirror plate turning device of this utility model, the first hanging plate and the second hanging plate are welded to the outer wall of the mandrel, and the stiffening plate is welded to the outer wall of the mandrel and the second hanging plate.

[0020] The beneficial effects of this utility model are as follows: The lifting beam mechanism and mirror plate turning device described in this utility model, through the cooperation of the lifting beam mechanism, the mirror plate mechanism and the lifting rope, can not only avoid the dismantling of the balance beam, but also avoid workers from working at heights, thus reducing safety risks. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0022] Figure 1 This is a schematic diagram of the overall structure of the beam lifting mechanism;

[0023] Figure 2 This is a sectional view of the lifting beam mechanism;

[0024] Figure 3 This is a schematic diagram of the mirror plate flipping device. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example 1

[0029] Reference Figures 1-2 This is the first embodiment of the present utility model. This embodiment provides a lifting beam mechanism, specifically including an extension component 100 and a fixing component 200 disposed at both ends of the extension component 100. The extension component 100 includes a spindle 101. The fixing component 200 includes a hanging plate component 201 disposed at both ends of the spindle 101 and a reinforcing component 202 disposed between the hanging plate component 201 and the spindle 101.

[0030] Furthermore, the hanging plate assembly 201 includes a first hanging plate 201a symmetrically fixed at both ends of the spindle 101, and a second hanging plate 201b symmetrically fixed at both ends of the spindle 101, wherein the second hanging plate 201b is away from the center of mass of the spindle 101 relative to the first hanging plate 201a.

[0031] Furthermore, the reinforcing component 202 includes stiffening plates 202a fixed to the side wall of the second hanging plate 201b and the outer wall of the mandrel 101, with the stiffening plates 202a symmetrically fixed to the outer wall of the mandrel 101.

[0032] Preferably, the first lifting plate 201a has a first lifting hole 201c symmetrically provided with respect to the axis of the spindle 101, and the second lifting plate 201b has a second lifting hole 201d symmetrically provided with respect to the axis of the spindle 101.

[0033] In this embodiment, the extension component 100 and the fixing component 200 can balance the weight of the mirror plate when it is lifted, so that the operator can turn the mirror plate over on the ground.

[0034] Example 2

[0035] Reference Figures 1-2 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0036] Specifically, the length of the mandrel 101 is greater than the diameter of the mirror plate.

[0037] It should be noted that the length of the mandrel 101 is 4500mm, which provides sufficient space for welding the first hanging plate 201a and the second hanging plate 201b.

[0038] Furthermore, the distance between the center of mass of the first hanging plate 201a and the mandrel 101 is greater than the radius of the mirror plate.

[0039] It should be noted that the distance between the first hanging plate 201a and the center of mass of the spindle 101 is 2075mm; the distance between the second hanging plate 201b and the center of mass of the spindle 101 is 2210mm. In this position, the hanging rope 400 connecting the first hanging plate 201a and the second hanging plate 201b can not obstruct the rotation of the mirror plate after being connected to the fixed block 300.

[0040] Preferably, the first hanging plate 201a and the second hanging plate 201b are welded to the outer wall of the mandrel 101, and the stiffening plate 202a is welded to the outer wall of the mandrel 101 and the second hanging plate 201b.

[0041] Example 3

[0042] Reference Figures 1-3 This is the third embodiment of the present invention. This embodiment provides a mirror plate flipping device, which includes a lifting beam mechanism and further includes...

[0043] The fixed block 300 is symmetrically fixed in the diameter direction of the mirror plate; the lifting rope 400 has its upper end passing through the first lifting hole 201c and the second lifting hole 201d located at one end of the spindle 101, and its lower end is sleeved on the outside of the fixed block 300.

[0044] Furthermore, the fixed block 300 is threaded onto the mirror plate.

[0045] In this embodiment, when the operator needs to lift the mirror plate for turning it over, the lifting rope 400 must first be passed through the first lifting hole 201c and the second lifting hole 201d, and the lifting rope 400 must be connected to the bridge crane. After the bridge crane lifts the entire lifting beam mechanism off the ground, the operator can pass the lifting rope 400 through the first lifting hole 201c and the second lifting hole 201d located below and on one side of the spindle 101, and hang it on the fixed pier 300. Then, another lifting rope 400 is passed through the first lifting hole 201c and the second lifting hole 201d on the other side, and hung on the fixed pier 300 on the other side (the axes of the two fixed piers 300 coincide, and the axes pass through the center of mass of the mirror plate). After completing the above operations, the operator can lift the mirror plate off the ground using the bridge crane, and the operator can then push it over for turning.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A beam lifting mechanism, characterized in that: include, An extension component (100), and fixing components (200) disposed at both ends of the extension component (100); The extension assembly (100) includes a mandrel (101); The fixing component (200) includes a hanging plate component (201) disposed at both ends of the mandrel (101), and a reinforcing component (202) disposed between the hanging plate component (201) and the mandrel (101); The hanging plate assembly (201) includes a first hanging plate (201a) symmetrically fixed at both ends of the mandrel (101), and a second hanging plate (201b) symmetrically fixed at both ends of the mandrel (101), wherein the second hanging plate (201b) is away from the center of mass of the mandrel (101) relative to the first hanging plate (201a); The reinforcing component (202) includes stiffening plates (202a) fixed on the side wall of the second hanging plate (201b) and the outer wall of the mandrel (101), the stiffening plates (202a) being symmetrically fixed on the outer wall of the mandrel (101).

2. The beam lifting mechanism according to claim 1, characterized in that: The first lifting plate (201a) has a first lifting hole (201c) symmetrically opened with respect to the axis of the spindle (101), and the second lifting plate (201b) has a second lifting hole (201d) symmetrically opened with respect to the axis of the spindle (101).

3. The beam lifting mechanism according to claim 2, characterized in that: The length of the mandrel (101) is greater than the diameter of the mirror plate.

4. The beam lifting mechanism according to claim 3, characterized in that: The distance between the center of mass of the first hanging plate (201a) and the mandrel (101) is greater than the radius of the mirror plate.

5. A mirror plate flipping device, characterized in that: Including the lifting beam mechanism as described in any one of claims 1 to 4, further comprising: Fixed piers (300) are symmetrically fixed in the diameter direction of the mirror plate; The upper end of the suspension rope (400) passes through the first suspension hole (201c) and the second suspension hole (201d) located at one end of the spindle (101), and the lower end is sleeved on the outside of the fixed block (300).

6. The mirror plate flipping device according to claim 5, characterized in that: The fixed block (300) is threaded onto the mirror plate.

7. The mirror plate flipping device according to claim 6, characterized in that: The length of the mandrel (101) is 4500 mm; The distance between the center of mass of the first hanging plate (201a) and the mandrel (101) is 2075mm; The distance between the center of mass of the second hanging plate (201b) and the mandrel (101) is 2210mm.

8. The mirror plate flipping device according to claim 7, characterized in that: The first hanging plate (201a) and the second hanging plate (201b) are welded to the outer wall of the mandrel (101), and the stiffening plate (202a) is welded to the outer wall of the mandrel (101) and the second hanging plate (201b).

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