Edge closing tool of graphite sealing device

Abstract

The utility model belongs to the technical field of tool parts, and particularly relates to an edge closing tool of a graphite sealing device, which comprises a pressing rod, a base and a claw disc, the base is of a hollow cylindrical structure, four flanges are arranged at the upper end of the outer cylindrical surface to form a groove structure and are integrally formed, and the flanges are used for installation guiding and positioning; the bottom of the base is of a center hole structure. The claw disc is fixed to the base through a screw, the center of the claw disc is of a round hole structure, and two sets of arc-shaped bosses are symmetrically arranged on the claw disc along the center. And the pressing rod downwards presses the graphite sealing device. After the graphite sealing device is reversely arranged between the claw disc and the pressing rod, the graphite sealing device is rotated to be adjusted to a proper position, the pressing rod is pressed downwards to press the safety edge of the graphite sealing device, and the effect of one-time edge closing and locking is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of tooling components, specifically relating to a finishing tool for a graphite sealing device. Background Technology

[0002] The gas turbine starter is designed with two sets of graphite sealing devices for sealing the lubricating oil. The final step in assembling the graphite sealing devices is to tighten the two symmetrical sets of safety edges on the graphite ring seat at four points. Because the safety edge width of the graphite ring seat is less than 2mm, when using a punch to press the safety edge, a punch that is too thick cannot press the safety edge into the small ring groove, while a punch that is too thin is prone to slipping out and damaging parts or even breaking the graphite ring. During assembly, the graphite sealing device must first be fixed with a clamping tool, then the four safety edges are bent one by one with a thick punch, and then the safety edges are slowly pressed into the ring groove with a thin punch. Therefore, a tightening tool needs to be designed to simplify the operation, improve assembly efficiency and quality, and achieve the goal of simultaneously tightening both sets of safety edges at one time. Utility Model Content

[0003] The purpose of this utility model is to provide a tool for finishing the edges of a graphite sealing device, which can finish the four safety edges of the graphite sealing device in one go, thereby simplifying the operation and improving the assembly efficiency and pass rate.

[0004] This utility model provides a finishing tool for a graphite sealing device, comprising a pressure rod, a base, and a claw plate. The base is a hollow cylindrical structure with four flanges forming a groove structure on the upper end of the outer cylindrical surface, integrally formed. The flanges are used for installation guidance and positioning. The bottom of the base has a central hole structure. The claw plate is fixed to the base with screws, and the center of the claw plate has a circular hole structure. Two sets of arc-shaped bosses are symmetrically arranged along the center of the claw plate. The pressure rod presses down on the graphite sealing device.

[0005] The inner side of the arc-shaped boss on the claw disk is rounded to reduce wear and damage to parts.

[0006] The arc-shaped boss is a consumable part, which can be replaced by disassembling and assembling the claw disc, thus improving convenience and economy.

[0007] A groove is provided on the outer cylindrical surface of the base to facilitate accurate positioning when the graphite sealing device is being finished.

[0008] The center hole of the base is larger than the center hole of the claw plate, which facilitates the disassembly of the claw plate.

[0009] The beneficial effects of this utility model are as follows: By inserting the assembled graphite sealing device along the edge of the base and adjusting the angle of the graphite sealing device, the two sets of arc-shaped protrusions of the claw plate are respectively attached to the two sets of safety edges of the graphite sealing device. The pressure bar is then pressed down until the shell of the graphite sealing device is attached to the end face of the claw plate. At this time, the arc-shaped protrusions have evenly pressed the safety edges of the graphite sealing device into the annular groove, achieving the purpose of one-time edge finishing of the four safety edges. The operation is simple and convenient, and the assembly efficiency and quality are significantly improved.

[0010] Considering the wear and tear on the curved boss during long-term use, a design was adopted to separate the claw plate from the base. This reduces the tool's overall dependence on material properties and allows for the replacement of the claw plate separately, improving the tool's economy and maintainability. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the edge-finishing tool of this utility model;

[0012] Figure 2 This is a structural breakdown diagram of the edge-finishing tool of this utility model;

[0013] Figure 3 This is a schematic diagram illustrating the operation of the edge-finishing tool of this utility model;

[0014] Figure 4 for Figure 1 Enlarged diagram of part B.

[0015] Appendix Figure 1 The labels are as follows: 1-pressure bar, 2-claw plate, 3-internal hex screw, 4-base.

[0016] Appendix Figure 3 The markings are: 100-graphite sealing device, 101-safety edge; 21-arc-shaped boss. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0018] like Figure 1 As shown, a finishing tool for a graphite sealing device includes a pressure rod 1, a base 4, and a claw plate 2. The base is a hollow cylindrical structure with four flanges forming a groove structure on the upper end of the outer cylindrical surface, which is integrally formed. The flanges are used for installation guidance and positioning. The bottom of the base has a central hole structure. The claw plate is fixed to the base by screws. The center of the claw plate has a circular hole structure, and two sets of arc-shaped bosses are symmetrically arranged along the center of the claw plate. The pressure rod 1 presses down on the graphite sealing device and can move freely along the axial direction of the base.

[0019] The inner side of each set of arc-shaped bosses on the claw disk is rounded to reduce wear and damage to parts.

[0020] The arc-shaped boss is a consumable part, which can be replaced by disassembling and assembling the claw disc, thus improving convenience and economy.

[0021] A groove is provided on the outer cylindrical surface of the base to facilitate accurate positioning when the graphite sealing device is being finished.

[0022] The center hole of the base is larger than the center hole of the claw plate, which facilitates the disassembly of the claw plate.

[0023] In the above embodiment, the assembled graphite sealing device 100 with the safety edge facing downwards is first inserted following the guide of the base's retaining edge. The angle of the graphite sealing device is adjusted by observing the groove on the base, so that the two sets of arc-shaped protrusions 21 of the claw plate respectively align with the two sets of safety edges of the graphite sealing device. Then, the pressing rod 1 is pressed down to move the graphite sealing device downwards until its outer shell is tightly against the end face of the claw plate. At this point, the arc-shaped protrusions have evenly pressed the safety edges of the graphite sealing device into the annular groove, achieving the purpose of simultaneously closing the two sets of safety edges at one time. This utility model's edge-closing tool is simple and convenient to operate, and assembly efficiency and quality are significantly improved.

Claims

1. A finishing tool for a graphite sealing device, characterized in that: It includes a pressure bar, a base, and a claw plate. The base is a hollow cylindrical structure with four flanges forming a groove structure on the upper end of the outer cylindrical surface, and is integrally formed. The bottom of the base has a central hole structure. The claw plate is fixed to the base by screws. The center of the claw plate has a circular hole structure, and two sets of arc-shaped protrusions are symmetrically arranged along the center of the claw plate. The pressure bar presses down on the graphite sealing device.

2. The edge-trimming tool for the graphite sealing device according to claim 1, characterized in that: The inner side of each set of arc-shaped bosses on the claw disk is rounded off.

3. The edge-trimming tool for the graphite sealing device according to claim 1, characterized in that: A groove is provided on the outer cylindrical surface of the base.

4. The edge-trimming tool for the graphite sealing device according to claim 1, characterized in that: The center hole of the base is larger than the center hole of the claw plate.

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