Heavy rotor set hoisting tool

Abstract

The utility model discloses a heavy rotor group hoisting tool, which belongs to the technical field of heavy rotor disassembly and assembly, and comprises a lifting hook arranged in a gap between an impeller and a back plate, the lower end part of the lifting hook is provided with a hook body matched with a rotating shaft, and the upper end part of the lifting hook extends towards the direction far away from the impeller and is provided with a lifting ring; a mounting transverse plate is arranged on the lifting hook positioned on the impeller side, is positioned above the impeller, extends towards the side far away from the back plate along the axial direction of the rotating shaft, and is provided with a fastener which is propped against the outer contour of the impeller. When in use, the impeller is directly pushed out of a gap by several millimeters, the hook body of the lifting hook can be hooked on the rotating shaft on the outer side of the hole, meanwhile, the lifting hook is close to the back plate, the lifting hook and the impeller are locked and fixed by the fastener, and axial and radial triangular stable support is formed by utilizing the dead weight of a rotor group; and after the level is adjusted, the rotor set can be smoothly drawn out only by axially moving the crane, other auxiliary supports are not needed in the process, and safe and rapid disassembly is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heavy rotor disassembly and assembly, and in particular relates to a heavy rotor assembly hoisting tool. Background Art

[0002] The disassembly of heavy rotor assemblies usually requires the assistance of a crane. However, in the event of a hole being punctured, the hook needs to be removed and the sling needs to be passed through the small hole before re-lifting. For rotary equipment, more than 90% of rotor assemblies require perforation. This process requires manpower or tooling support to ensure the stability of the rotor assembly. In a narrow space, it will be difficult to support the stability of the rotor assembly. If the support is unstable and a bump occurs, it will cause significant economic losses, and in severe cases, the rotor assembly will be scrapped. Summary of the invention

[0003] In response to the problems existing in the prior art, the utility model provides a heavy-duty rotor assembly lifting tooling, which can use the deadweight of the rotor assembly to form an axial and radial triangular stable support. After adjusting the level, the rotor assembly can be smoothly pulled out by simply moving the crane axially. No other auxiliary support is required during the process, so safe and quick disassembly can be achieved.

[0004] The utility model is implemented as follows: a heavy-duty rotor assembly hoisting tool, the heavy-duty rotor assembly includes an impeller and a rotating shaft that are mounted in cooperation with each other, the rotating shaft passes through a back plate through a hole, the end face of the impeller abuts against the back plate with a gap, the hoisting tool includes a hook arranged in the gap between the impeller and the back plate, the lower end of the hook is provided with a hook body that matches the rotating shaft, and the upper end of the hook extends away from the impeller and is provided with a lifting ring;

[0005] A mounting cross plate is arranged on the hook at the impeller side. The mounting cross plate is located above the impeller and extends axially away from the back plate along the shaft. A fastener abutting against the outer contour of the impeller is arranged on the mounting cross plate.

[0006] Furthermore, a wedge-shaped end surface is provided on the mounting cross plate, and the axis of the fastener and the wedge-shaped end surface are perpendicular to each other.

[0007] Furthermore, the hook is a metal plate structure.

[0008] Furthermore, the fastener is a bolt or a screw.

[0009] The utility model has the following advantages and technical effects: due to the adoption of the above technical scheme, a high-strength thin-sheet metal hook is used. When in use, the impeller can be directly pushed out of the gap of several millimeters to hook the hook body on the rotating shaft outside the hole. At the same time, the hook is close to the back plate, and the hook and the impeller are locked and fixed with fasteners. The dead weight of the rotor group is used to form an axial and radial triangular stable support. After adjusting the level, the rotor group can be smoothly pulled out by moving the crane axially. No other auxiliary support is required during the process, so safe and fast disassembly can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the hoisting work provided by the embodiment of the utility model;

[0011] Figure 2 It is a schematic diagram of the structure of a hook, a mounting cross plate and a fastener provided in an embodiment of the utility model.

[0012] In the figure: 1. impeller; 2. rotating shaft; 3. back plate; 4. hook; 4-1. hook body; 4-2. lifting ring; 5. mounting cross plate; 5-1. wedge-shaped end face; 6. fastener. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0014] It should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0015] like Figure 1 and Figure 2 As shown, the present application provides a heavy-duty rotor assembly hoisting tool, the heavy-duty rotor assembly includes an impeller 1 and a rotating shaft 2 that are mounted in cooperation with each other, the rotating shaft 2 passes through a back plate 3 through a hole, the end face of the impeller 1 abuts against the back plate 3 with a gap, and the hoisting tool includes a hook 4 arranged in the gap between the impeller 1 and the back plate 3, specifically, the hook 4 is a plate structure. The lower end of the hook 4 is provided with 4-1 that cooperates with the rotating shaft 2, and the upper end of the hook 4 extends away from the impeller 1 and is provided with a lifting ring 4-2.

[0016] A mounting cross plate 5 is provided on the hook 4 located on the side of the impeller 1, the mounting cross plate 5 is located above the impeller 1, and extends axially along the rotating shaft 2 away from the back plate 3, and a fastener 6 is provided on the mounting cross plate 5 to abut against the outer contour of the impeller 1. Specifically, the fastener 6 is a bolt or a screw, and a screw hole is correspondingly provided on the mounting cross plate 5.

[0017] Preferably, a wedge-shaped end surface 5 - 1 is provided on the mounting cross plate 5 , and the axis of the fastener 6 is perpendicular to the wedge-shaped end surface 5 - 1 .

[0018] Due to the adoption of the above technical solution, a high-strength thin-sheet metal hook 4 is used. When in use, the impeller 1 can be directly pushed out of the gap of several millimeters to hook the 4-1 of the hook 4 on the outside of the hole on the rotating shaft 2. At the same time, the hook 4 is close to the back plate 3, and the hook 4 and the impeller 1 are locked and fixed with the fastener 6. The dead weight of the rotor group is used to form an axial and radial triangular stable support. After adjusting the level, the rotor group can be smoothly pulled out by moving the crane axially. No other auxiliary support is required during the process, so safe and fast disassembly can be achieved.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heavy-duty rotor assembly hoisting tool, the heavy-duty rotor assembly comprises an impeller and a rotating shaft which are mounted in cooperation with each other, the rotating shaft passes through a back plate through a hole, the end face of the impeller abuts against the back plate with a gap, and is characterized in that: The lifting tool comprises a lifting hook arranged in the gap between the impeller and the back plate, the lower end of the lifting hook is provided with a hook body matched with the rotating shaft, and the upper end of the lifting hook extends away from the impeller and is provided with a lifting ring; A mounting cross plate is arranged on the hook at the impeller side. The mounting cross plate is located above the impeller and extends axially away from the back plate along the shaft. A fastener abutting against the outer contour of the impeller is arranged on the mounting cross plate.

2. The heavy rotor assembly lifting tool according to claim 1 is characterized in that: The mounting transverse plate is provided with a wedge-shaped end surface, and the axis of the fastener and the wedge-shaped end surface are perpendicular to each other.

3. The heavy rotor assembly lifting tool according to claim 1 is characterized in that: The hook is a metal plate structure.

4. The heavy rotor assembly lifting tool according to claim 1, characterized in that: The fastener is a bolt or a screw.

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