KR-102961270-B1 - cast lever disassembling tool

Abstract

The present invention relates to a tool for disassembling a cast lever of a novel structure capable of effectively disassembling a cast lever fixed to a guide vane. The tool for disassembling a cast lever according to the present invention can separate the cast lever (3) from the guide vane (1) by fixing the support plate (11) to the upper surface of the cast lever (3) using a bolt (11b), placing a hydraulic jack (6) on each lower side of three extension bars (12), and then extending the three hydraulic jacks (6) to lift the cast lever (3) upward. Therefore, there is an advantage in that the cast lever (3) attached to the guide vane (1) can be effectively separated.

Inventors

• 김경훈
• 김민재

Assignees

• 옵티멀에너지서비스 주식회사

Dates

Publication Date

20260511

Application Date

20250818

Claims (2)

1. A cast lever (3) is formed on the lower side into which the upper end of the guide vane (1) is inserted, and on the upper side into which a plurality of coupling holes (3b) are formed, for separating the cast lever (3) from the guide vane (1). A support plate (11) that is placed on the upper surface of the above cast lever (3) and has a connecting hole (11a) corresponding to the above coupling hole (3b) formed to penetrate the upper and lower surfaces, and Three extension bars (12) provided to extend outwardly from the upper surface of the support plate (11), and A support member (13) coupled to the upper surface of the adjacent end of the extension bar (12), and A reinforcing plate (14) coupled to the upper surface of the extension bar (12) and the perimeter surface of the support member (13), and A ring member (15) provided in the center of the upper surface of the support member (13), and A tilt sensor (16) provided on the above support member (13), and A plurality of lamps (17) provided on the upper surface of the extension bar (12) so as to be spaced apart in the longitudinal direction of the extension bar (12), and It includes a control means (18) that receives a signal from the tilt sensor (16) and controls the on-off of the lamp (17), and After placing the support plate (11) on the upper surface of the cast lever (3) and connecting the bolt (11b) penetrating the communication hole (11a) to the coupling hole (3b) to fix the support plate (11) to the upper surface of the cast lever (3), a hydraulic jack (6) is placed on the lower side of the extension bar (12) and the hydraulic jack (6) is extended so that the cast lever (3) can be lifted upward. A tool for disassembling a cast lever, characterized in that the control means (18) receives a signal from the tilt sensor (16) when the extension bar (12) is pushed upward using the hydraulic jack (6), and when the support member (13) tilts to one side, turns on the lamp (17) provided on the extension bar (12) that is tilted to the lowest side to indicate the hydraulic jack (6) that needs to be further extended.
2. delete

Description

Cast lever disassembling tool The present invention relates to a tool for disassembling a cast lever of a novel structure capable of effectively disassembling a cast lever fixed to a guide vane. Generally, power generation facilities are equipped with an output control device, namely a governor system, and such a governor system is equipped with a servo motor and guide vanes. At this time, a cast lever is provided at the end of the guide vane to transmit the force of the servo motor to the guide vane. FIGS. 1 to 3 illustrate the combined state of such a cast lever (3). The guide vane (1) is configured in the shape of a rod extending in the vertical direction and is rotatably coupled to a through hole (2a) formed in the head cover (2). The cast lever (3) is coupled to the upper end of the guide vane (1) and rotates the cast lever (3) with the servo motor so that the guide vane (1) rotates in the forward and reverse directions. To this end, a plurality of coupling grooves (1a) are formed on the upper surface of the guide vane (1), an insertion groove (3a) into which the upper end of the guide vane (1) is inserted is formed on the lower surface of the cast lever (3), and a coupling hole (3b) corresponding to the coupling groove (1a) is formed on the upper surface of the cast lever (3). At this time, as shown in FIG. 2, the coupling groove (1a) and the coupling hole (3b) are formed such that they are spaced apart from each other at a 90-degree angle, and the coupling hole (3b) has screw threads formed on its inner surface. Accordingly, a wedge pin (4) can be connected to the coupling groove (1a) through the coupling hole (3b), and a fixing bolt (5) can be connected to the coupling hole (3b) to fix the cast lever (3) to the guide vane (1). Meanwhile, in order to maintain the guide vane (1) or the servo motor, the cast lever (3) must be removed as shown in FIG. 3. However, when this governor system is used for a long time, the cast lever (3) gets stuck to the guide vane (1), and the cast lever (3) does not separate easily. Therefore, a method was needed to effectively separate the cast lever (3) that is attached to the guide vane (1). FIG. 1 is a cross-sectional view illustrating the combined state of a typical cast lever, FIG. 2 is a plan view illustrating a typical cast lever, FIG. 3 is a cross-sectional view illustrating a typical cast lever in a disassembled state. FIG. 4 is a perspective view illustrating a tool for disassembling a cast lever according to the present invention. FIG. 5 is a plan view showing the state in which a tool for disassembling a cast lever according to the present invention is installed. FIG. 6 is a cross-sectional view showing the cross-section along line AA of FIG. 5. FIG. 7 is a cross-sectional view showing the cross-section along line BB of FIG. 5. FIG. 8 is a cross-sectional view illustrating the state in which a cast lever is separated using a cast lever disassembly tool according to the present invention. FIG. 9 is a plan view illustrating a second embodiment of a tool for disassembling a cast lever according to the present invention. FIG. 10 is a cross-sectional view of a second embodiment of a tool for disassembling a cast lever according to the present invention, FIG. 11 is a block diagram of a second embodiment of a tool for disassembling a cast lever according to the present invention. The present invention will be described in detail below with reference to the attached exemplary drawings. FIGS. 4 to 8 illustrate a tool for disassembling a caster lever according to the present invention, wherein the caster lever is coupled to the upper end of a guide vane (1). The guide vane (1) is configured in the shape of a rod extending in the vertical direction and is rotatably coupled to a through hole (2a) formed in the head cover (2), and a plurality of coupling grooves (1a) are formed on the upper surface of the cast lever (3). In addition, an insertion groove (3a) into which the upper end of the guide vane (1) is inserted is formed on the lower side of the cast lever (3), and a coupling hole (3b) corresponding to the coupling groove (1a) is formed on the upper side of the cast lever (3). At this time, the coupling groove (1a) and the coupling hole (3b) are formed such that they are spaced apart from each other at a 90-degree angle, and the coupling hole (3b) has screw threads formed on its inner surface. Accordingly, a wedge pin (4) can be connected to the coupling groove (1a) through the coupling hole (3b), and a fixing bolt (5) can be connected to the coupling hole (3b) to fix the cast lever (3) to the guide vane (1). And, the tool for disassembling a cast lever according to the present invention comprises a support plate (11) that is placed on the upper surface of the cast lever (3) and has a connecting hole (11a) corresponding to the coupling hole (3b) formed to penetrate the upper and lower surfaces, three extension bars (12) provided to extend outward from the upper surfac