KR-102961005-B1 - ROTARY TYPE ROTOR SHAFT SUPPORTING STAND AND MANUFACTURE METHOD OF THE ROTOR SHAFT SUPPORTING STAND
Abstract
An invention is disclosed relating to a rotary roller stand and a method for manufacturing a support roller thereof. The disclosed rotary roller stand is characterized by comprising: a frame arranged to correspond to each rotor shaft provided on both sides of a turbine; an mounting bracket provided on one side of each frame; a pair or a pair thereof provided on the mounting bracket provided on each frame and externally contacting the corresponding rotor shaft; a driving motor provided on each frame to transmit driving force to rotate at least a specific support roller of the corresponding frame; a control unit that simultaneously controls the operation of the driving motor provided on each frame; and a roller cover provided on the circumferential surface of each support roller to protect the support roller from the rotor shaft.
Inventors
- 박정근
Assignees
- 주식회사 피제이케이
Dates
- Publication Date
- 20260507
- Application Date
- 20240626
Claims (4)
- A frame arranged to correspond to each rotor shaft provided on both sides of a turbine; an installation bracket provided on one side of each of the frames; a pair or a pair of support rollers provided on each of the installation brackets provided on each of the frames and externally contacting the corresponding rotor shaft; a drive motor provided on each of the frames to transmit a driving force so that at least a specific support roller of the corresponding frame rotates; a control unit that simultaneously controls the operation of the drive motor provided on each of the frames; and a roller cover provided on the circumferential surface of each of the support rollers to protect the support roller from the rotor shaft, comprising It includes a position correction unit for correcting the position by finely moving the position of the installation bracket that rotatably supports the support roller relative to the corresponding frame. The above position correction unit comprises a shaft rotatably connected to the above installation bracket and screw-coupled to the installation base; A handle for rotating the above shaft; A plurality of elongated holes formed so that the long diameter direction is set along the movement direction of the above-mentioned installation bracket; and It includes a guide pin inserted into the above-mentioned elongated hole to guide the movement of the above-mentioned installation bracket, and A rotary roller stand characterized in that the support roller has a plurality of anti-slip protrusions formed in a circumferential direction on its circumferential surface, and the roller cover has an anti-slip groove formed to accommodate the corresponding anti-slip protrusions.
- In Article 1, A rotary roller stand characterized in that the roller cover is made of a ferrous or non-ferrous metal material to have rigidity.
- In Paragraph 1 or 2, The support roller corresponding to the roller cover has a reinforcing plate attached to one or both sides, and A rotary roller stand characterized in that the corresponding plate, roller cover, and support roller are connected by a fastening member.
- Roller manufacturing stage of forming and manufacturing support rollers and roller shafts made of metal; A cover manufacturing step for producing a roller cover made in the form of a plate made of ferrous or non-ferrous metal material, sized to wrap around the perimeter of the support roller; A cover installation step of butt-welding corresponding edges of the roller cover, which is in the form of a plate covering the circumference of the support roller; and The method includes a roller cover butt-welded while enclosing the support roller, and a cover fixing step of attaching a reinforcing plate to one or both sides of the corresponding support roller and then fixing the corresponding reinforcing plate, the roller cover, and the support roller using a fastening member. After attaching and fixing the roller cover to the support roller, it includes a position correction unit for correcting the position by finely moving the position of the installation bracket that rotatably supports the support roller relative to the corresponding frame. The above position correction unit comprises a shaft rotatably connected to the above installation bracket and screw-coupled to the installation base; A handle for rotating the above shaft; A plurality of elongated holes formed so that the long diameter direction is set along the movement direction of the above-mentioned installation bracket; and It includes a guide pin inserted into the above-mentioned elongated hole to guide the movement of the above-mentioned installation bracket, and A method for manufacturing a support roller of a rotary roller stand, characterized in that the support roller has a plurality of anti-slip protrusions formed in a circumferential direction on its circumferential surface, and the roller cover has an anti-slip groove formed to accommodate the corresponding anti-slip protrusions.
Description
Rotary Type Rotor Shaft Supporting Stand and Method of Manufacturing the Supporting Roller thereof The present invention relates to a rotary roller stand and a method for manufacturing a support roller thereof. More specifically, the invention relates to a rotary roller stand and a method for manufacturing a support roller thereof that prevents damage to the outer surfaces of the rotor shaft and the support roller by wrapping the circumference of the support roller, which supports the rotor shaft of a turbine, with a roller cover made of a high-strength ferrous or non-ferrous metal material; prevents slippage of the roller cover relative to the support roller by firmly bolting the plate-shaped roller cover to the corresponding support roller; and enables precise positioning relative to the rotor shaft by allowing at least one pair of support rollers to be moved finely, thereby preventing eccentric loads from acting on the support rollers and increasing durability through load distribution. Generally, since gas turbine rotors are heavy, weighing up to tens of tons, when repairs were required, they were placed on a stand, and a worker climbed up using a ladder to perform non-destructive inspection of the rotor's upper compressor blades and replace the gas turbine bucket. The support structure for the existing gas turbine is configured to support the rotor shafts formed on both sides of the gas turbine rotor from the bottom surface, and once the gas turbine rotor is supported by the support structure, the gas turbine rotor is positioned in a state where rotation is difficult. A support for a gas turbine rotor of this type is disclosed in Korean Registered Patent Publication No. 10-0661756 (Registration date: Dec. 20, 2006; Title of invention: Pipe chamfering device). The technical configuration described above is provided as background technology to aid in understanding the present invention and does not constitute prior art widely known in the technical field to which the present invention belongs. FIG. 1 is a front view showing a state in which a rotary roller stand according to one embodiment of the present invention supports the rotor shaft of a turbine. FIG. 2 is a side view of a rotary roller stand according to one embodiment of the present invention. FIG. 3 is a front view of a rotary roller stand according to one embodiment of the present invention. FIG. 4 is a side cross-sectional view of a rotary roller stand according to one embodiment of the present invention. FIG. 5 is a cross-sectional view of a rotary roller stand according to one embodiment of the present invention. FIG. 6 is a rear view of a rotary roller stand according to one embodiment of the present invention. FIG. 7 is a plan view of a rotary roller stand according to one embodiment of the present invention. FIG. 8 is a diagram showing the state of installing a roller cover on a support roller of a rotary roller stand according to one embodiment of the present invention. FIG. 9 is a diagram showing the state of installing a roller cover on a support roller of a rotary roller stand according to another embodiment of the present invention. FIG. 10 is a flowchart showing a method for manufacturing a support roller of a rotary roller stand according to one embodiment of the present invention. Hereinafter, embodiments of the method for manufacturing a rotary roller stand and its support roller according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or the size of components shown in the drawings may be exaggerated for clarity and convenience of explanation. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intention or convention of the user or operator. Therefore, the definitions of these terms should be based on the content throughout this specification. FIG. 1 is a front view showing a state in which a rotary roller stand according to one embodiment of the present invention supports the rotor shaft of a turbine. FIG. 2 is a side view of a rotary roller stand according to one embodiment of the present invention, and FIG. 3 is a front view of a rotary roller stand according to one embodiment of the present invention. FIG. 4 is a side cross-sectional view of a rotary roller stand according to one embodiment of the present invention, FIG. 5 is a front cross-sectional view of a rotary roller stand according to one embodiment of the present invention, and FIG. 6 is a rear view of a rotary roller stand according to one embodiment of the present invention. FIG. 7 is a plan view of a rotary roller stand according to one embodiment of the present invention, and FIG. 8 is a state view of installing a roller cover on a support roller of a rotary roller stand according to one embodiment of the present invention. Referring to FIGS. 1 to 8, a rotary roller stand (100) according to one embo